C\u00e1ch t\u00ednh c\u1ea7u l\u00f4 chu\u1ea9n lu\u00f4n nh\u1eadn \u0111\u01b0\u1ee3c s\u1ef1 quan t\u00e2m l\u1edbn nh\u1ea5t c\u1ee7a nh\u1eefng ng\u01b0\u1eddi ch\u01a1i soi c\u1ea7u l\u00f4 \u0111\u1ec1. Ch\u00fang t\u00f4i \u0111\u00e3 t\u1ed5ng h\u1ee3p nh\u1eefng c\u00e1ch t\u00ednh c\u1ea7u l\u00f4 2024 m\u1edbi nh\u1ea5t ph\u1ee5c v\u1ee5 ng\u01b0\u1eddi ch\u01a1i soi c\u1ea7u. B\u00e0i vi\u1ebft gi\u1edbi thi\u1ec7u nh\u1eefng c\u00e1ch t\u00ednh c\u1ea7u l\u00f4 ch\u00ednh x\u00e1c nh\u1ea5t \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh nh\u1eefng c\u1eb7p s\u1ed1 may m\u1eafn h\u00f4m nay.<\/p>\n
T\u00ednh l\u00f4 \u0111\u1ec1 d\u1ef1a v\u00e0o quy t\u1eafc to\u00e1n h\u1ecdc l\u00e0 g\u00ec?<\/strong><\/span><\/h2>\nT\u00ednh l\u00f4 \u0111\u1ec1 d\u1ef1a v\u00e0o quy t\u1eafc to\u00e1n h\u1ecdc l\u00e0 nh\u1eefng thu\u1eadt to\u00e1n \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p t\u1eeb nh\u1eefng c\u00f4ng th\u1ee9c t\u00ednh hi\u1ec7u qu\u1ea3 nh\u1ea5t, \u0111\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng kinh nghi\u1ec7m soi c\u1ea7u l\u00f4 m\u00e0 c\u00e1c b\u1ea1n c\u0169ng c\u1ea7n ph\u1ea3i bi\u1ebft. Qua \u0111\u00f3 ng\u01b0\u1eddi ch\u01a1i c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng n\u1eafm b\u1eaft quy lu\u1eadt c\u1ee7a nh\u1eefng con s\u1ed1, c\u00f3 x\u00e1c su\u1ea5t tr\u00fang l\u1edbn nh\u1ea5t \u0111\u1ec3 \u0111\u00e1nh h\u00f4m nay.<\/p>\n<\/figcaption><\/figure>\nNh\u1eefng c\u00f4ng th\u1ee9c t\u00ednh l\u00f4 \u0111\u1ec1 theo quy t\u1eafc to\u00e1n h\u1ecdc kh\u00f4ng bao h\u00e0m c\u00e1ch t\u00ednh c\u1ee5 th\u1ec3. Ch\u00fang ta s\u1eed d\u1ee5ng c\u00e1ch n\u00e0y soi c\u1ea7u sao cho t\u00ecm \u0111\u01b0\u1ee3c nh\u1eefng c\u1eb7p s\u1ed1 c\u00f3 t\u1ef7 l\u1ec7 tr\u00fang cao nh\u1ea5t. C\u0103n c\u1ee9 v\u00e0o b\u1ea3ng th\u1ed1ng k\u00ea k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 c\u1ee7a k\u1ef3 tr\u01b0\u1edbc, tu\u1ea7n tr\u01b0\u1edbc, th\u00e1ng tr\u01b0\u1edbc, n\u0103m tr\u01b0\u1edbc \u0111\u1ec3 ph\u00e2n t\u00edch ra c\u00e1c quy lu\u1eadt ra s\u1ed1. M\u1ed7i ng\u01b0\u1eddi ch\u01a1i c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn cho m\u00ecnh c\u00e1ch ph\u00e2n t\u00edch ri\u00eang b\u1ea3n th\u00e2n c\u1ea3m th\u1ea5y tin c\u1eady nh\u1ea5t.<\/p>\n
<\/p>\n
C\u00f4ng d\u1ee5ng c\u1ee7a c\u00e1ch t\u00ednh c\u1ea7u l\u00f4 2024 theo quy t\u1eafc to\u00e1n h\u1ecdc<\/strong><\/span><\/h2>\nM\u1eb7c d\u00f9 x\u1ed5 s\u1ed1 l\u00e0 tr\u00f2 ch\u01a1i c\u00f3 t\u00ednh may r\u1ee7i. Tuy nhi\u00ean kh\u00f4ng th\u1ec3 ph\u1ee7 nh\u1eadn hi\u1ec7u qu\u1ea3 c\u1ee7a soi c\u1ea7u l\u00f4 \u0111\u1ec1 mang l\u1ea1i cho ng\u01b0\u1eddi ch\u01a1i nhi\u1ec1u chi\u1ebfn th\u1eafng. Ch\u00fang ta kh\u00f4ng th\u1ec3 ph\u00e2n t\u00edch, soi c\u1ea7u ch\u00ednh x\u00e1c mi\u1ec5n ph\u00ed 100% nh\u01b0ng ch\u00fang ta c\u00f3 th\u1ec3 n\u00e2ng cao t\u1ef7 l\u1ec7 \u0111\u00e1nh tr\u00fang l\u00ean m\u1ee9c t\u1ed1i \u0111a.<\/p>\n
Tuy r\u1eb1ng kh\u00f4ng ph\u1ea3i ai c\u0169ng bi\u1ebft nh\u1eefng c\u00e1ch m\u00ecnh \u0111ang s\u1eed d\u1ee5ng l\u00e0 m\u1ed9t trong nh\u1eefng c\u00e1ch t\u00ednh c\u1ea7u l\u00f4 chu\u1ea9n b\u1eb1ng quy t\u1eafc to\u00e1n h\u1ecdc. Nh\u01b0ng ch\u00fang ta \u0111ang \u00e1p d\u1ee5ng nh\u1eefng thu\u1eadt to\u00e1n 1 c\u00e1ch r\u1ed9ng r\u00e3i nh\u1eb1m:<\/p>\n
\n- Soi c\u1ea7u, d\u1ef1 \u0111o\u00e1n s\u1ed1 l\u00f4 ch\u00ednh x\u00e1c.<\/li>\n
- Soi c\u1ea7u, d\u1ef1 \u0111o\u00e1n k\u1ebft qu\u1ea3 \u0111\u1ec1 c\u00f3 t\u1ef7 l\u1ec7 tr\u00fang cao.<\/li>\n<\/ul>\n
M\u1ed9t s\u1ed1 th\u1ed1ng k\u00ea cho th\u1ea5y ng\u01b0\u1eddi ch\u01a1i l\u00f4 \u0111\u1ec1 s\u1eed d\u1ee5ng c\u00e1c c\u00e1ch soi c\u1ea7u th\u01b0\u1eddng xuy\u00ean s\u1ebd c\u00f3 t\u1ef7 l\u1ec7 tr\u00fang l\u00f4 \u0111\u1ec1 cao h\u01a1n. M\u1ee9c \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a c\u00e1c con s\u1ed1 \u0111\u01b0\u1ee3c d\u1ef1 \u0111o\u00e1n kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o thu\u1eadt to\u00e1n ph\u1ee9c t\u1ea1p hay \u0111\u01a1n gi\u1ea3n. \u0110\u00f4i khi, c\u00f4ng th\u1ee9c t\u00ednh \u0111\u01a1n gi\u1ea3n l\u1ea1i mang t\u1edbi nh\u1eefng hi\u1ec7u qu\u1ea3 kh\u00f4ng ng\u1edd.<\/p>\n
Hi\u1ec7n nay, c\u00f4ng ngh\u1ec7 4.0 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i gi\u00fap ng\u01b0\u1eddi ch\u01a1i kh\u00f4ng ph\u1ea3i m\u1ea5t qu\u00e1 nhi\u1ec1u th\u1eddi gian cho vi\u1ec7c th\u1ed1ng k\u00ea, t\u00ecm ki\u1ebfm th\u00f4ng tin. B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng nh\u1eefng ph\u1ea7n m\u1ec1m to\u00e1n h\u1ecdc gi\u00fap ch\u00fang ta nhanh ch\u00f3ng \u0111\u01b0a ra nh\u1eefng k\u1ebft qu\u1ea3 t\u00ednh to\u00e1n c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao.<\/p>\n
Kinh nghi\u1ec7m t\u00ecm ra quy lu\u1eadt x\u1ed5 s\u1ed1 <\/strong><\/span><\/h2>\n\u1ee8ng d\u1ee5ng c\u1ee7a quy t\u1eafc to\u00e1n h\u1ecdc trong soi c\u1ea7u l\u00f4 \u0111\u1ec1 r\u1ea5t \u0111a d\u1ea1ng. Ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 soi c\u1ea7u l\u00f4 \u0111\u1ec1 mi\u1ec1n B\u1eafc. V\u00ec \u0111\u00e0i n\u00e0y c\u00f3 nhi\u1ec1u gi\u1ea3i nh\u1ea5t, c\u00e1c b\u1ed9 s\u1ed1 \u0111\u01b0\u1ee3c ra c\u00f3 t\u00ednh ng\u1eabu nhi\u00ean, \u1ea3o di\u1ec7u. K\u00edch th\u00edch \u0111\u01b0\u1ee3c ham mu\u1ed1n chinh ph\u1ee5c c\u1ee7a ng\u01b0\u1eddi ch\u01a1i soi c\u1ea7u.<\/p>\n
Sau nhi\u1ec1u n\u0103m nghi\u00ean c\u1ee9u quy lu\u1eadt x\u1ed5 s\u1ed1 mi\u1ec1n B\u1eafc, ng\u01b0\u1eddi soi c\u1ea7u l\u00f4 \u0111\u1ec1 chuy\u00ean nghi\u1ec7p \u0111\u00e3 t\u00ecm ra nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p t\u00ednh ch\u00ednh x\u00e1c. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 c\u00f4ng th\u1ee9c t\u00ednh b\u1ea5t b\u1ea1i.<\/p>\n
<\/p>\n
C\u00f4ng th\u1ee9c t\u00ednh d\u00e0n \u0111\u1ec1 tr\u0103m tr\u1eadn tr\u0103m th\u1eafng<\/strong><\/span><\/h3>\nX\u00e1c su\u1ea5t tr\u00fang \u0111\u1ec1 c\u1ef1c th\u1ea5p, ph\u01b0\u01a1ng ph\u00e1p d\u00e0n \u0111\u1ec1 cho th\u1ea5y hi\u1ec7u qu\u1ea3 t\u1ed1i \u01b0u khi ng\u01b0\u1eddi ch\u01a1i c\u00f3 th\u1ec3 \u0103n \u0111\u1ec1 h\u00e0ng ng\u00e0y. V\u1edbi m\u1ee9c tr\u1ea3 th\u01b0\u1edfng cao nh\u01b0 hi\u1ec7n nay, vi\u1ec7c \u0103n \u0111\u1ec1 v\u00e0 c\u00f3 l\u00e3i l\u00e0 \u0111i\u1ec1u d\u1ec5 x\u1ea3y ra.<\/p>\n
C\u00f4ng th\u1ee9c 1: D\u00e0n \u0111\u1ec1 mi\u1ec1n B\u1eafc<\/strong><\/span><\/h4>\n\n- D\u00e0n \u0111\u1ec1 s\u1ed1 ch\u1eb5n ch\u1eb5n: 00, 02, 04, 06, 08, 20, 22, 24, 26, 28, 40, 42, 44, 46, 48, 60, 62, 64, 66, 68, 80, 82, 84, 86, 88.<\/li>\n
- D\u00e0n \u0111\u1ec1 s\u1ed1 ch\u1eb5n l\u1ebb: 01, 03, 05, 07, 09, 21, 23, 25, 27, 29, 41, 43, 45, 47, 49, 61, 63, 65, 67, 69, 81, 83, 85, 87, 89.<\/li>\n
- D\u00e0n \u0111\u1ec1 s\u1ed1 l\u1ebb l\u1ebb: 11, 13, 15, 17, 19, 31, 33, 35, 37, 39, 51, 53, 55, 57, 59, 71, 73, 75, 77, 79, 91, 93, 95, 97, 99.<\/li>\n
- D\u00e0n \u0111\u1ec1 s\u1ed1 l\u1ebb ch\u1eb5n: 12, 14, 16, 18, 30, 32, 34, 36, 38, 50, 52, 54, 56, 58, 70, 72, 74, 76, 78, 90, 92, 94, 96, 98.<\/li>\n<\/ul>\n
C\u00f4ng th\u1ee9c 2: C\u00e1ch t\u00ednh c\u1ea7u l\u00f4 chu\u1ea9n d\u1ef1a v\u00e0o ch\u1ea1m, t\u1ed5ng ch\u1ea1m<\/strong><\/span><\/h4>\nC\u00e1ch \u0111\u00e1nh l\u00f4 \u0111\u1ec1 d\u1ef1a theo t\u1ed5ng, ch\u1ea1m, t\u1ed5ng ch\u1ea1m \u0111\u01b0\u1ee3c \u0111a s\u1ed1 cho r\u1eb1ng l\u00e0 c\u00e1ch t\u00ednh nhanh v\u00e0 \u0111\u01a1n gi\u1ea3n nh\u1ea5t. B\u1eaft \u0111\u1ec1 d\u1ef1a theo c\u00e1ch n\u00e0y cho ra c\u00e1c d\u00e0n \u0111\u1ec1 thu\u1ed9c c\u00e1c m\u1ee9c t\u1eeb 10 \u0111\u1ebfn 80 s\u1ed1. C\u0103n c\u1ee9 v\u00e0o KQXS \u0111\u00e3 ra \u0111\u1ec3 c\u00f3 nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh sau:<\/p>\n
\n- B\u1eaft ch\u1ea1m \u0111\u1ec1 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t h\u00f4m tr\u01b0\u1edbc.<\/li>\n
- \u0110\u00e1nh b\u1ec7t t\u1ed5ng (\u0111\u00e1nh t\u1ed5ng \u0111\u1ec1 ra tr\u01b0\u1edbc \u0111\u00f3)<\/li>\n
- \u0110\u00e1nh ch\u1ea1m \u0111\u1ec1 theo c\u00e1c v\u1ecb tr\u00ed \u0103n th\u00f4ng li\u00ean t\u1ee5c tr\u00ean KQXS.<\/li>\n
- Nu\u00f4i c\u00e1c t\u1ed5ng \u0111\u1ec1 ch\u01b0a ra.<\/li>\n<\/ul>\n
C\u00f4ng th\u1ee9c t\u00ednh l\u00f4 si\u00eau \u0111\u1eb3ng<\/strong><\/span><\/h3>\nCh\u00fang ta c\u0169ng c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng c\u00e1c quy t\u1eafc to\u00e1n h\u1ecdc \u0111\u1ec3 t\u00ednh l\u00f4 ch\u00ednh x\u00e1c. C\u1ea7u l\u00f4 c\u00f3 nhi\u1ec1u h\u01a1n, x\u00e1c su\u1ea5t tr\u00fang l\u00f4 cao h\u01a1n. Tuy nhi\u00ean, v\u1eabn c\u00f3 1 v\u00e0i c\u00e1ch t\u00ednh c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao h\u01a1n h\u1eb3n.<\/p>\n
C\u00e1ch 1: Theo b\u1ea1c nh\u1edb<\/strong><\/span><\/h4>\nS\u1eed d\u1ee5ng t\u00ednh ch\u1ea5t b\u1eafc c\u1ea7u ch\u00fang ta t\u00ednh b\u1ea1c nh\u1edb g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c s\u1ed1 c\u00f3 t\u1ef7 l\u1ec7 c\u00f9ng ra cao. C\u00e1ch soi c\u1ea7u n\u00e0y \u0111\u01b0\u1ee3c nhi\u1ec1u th\u1ebf h\u1ec7 t\u00ecm ki\u1ebfm v\u00e0 ho\u00e0n thi\u1ec7n. C\u00f3 r\u1ea5t nhi\u1ec1u quy t\u1eafc t\u00ednh b\u1ea1c nh\u1edb, khi soi c\u1ea7u ch\u00fa \u00fd xem l\u1ea1i ch\u00ednh x\u00e1c tr\u01b0\u1edbc khi \u0111\u00e1nh.<\/p>\n
C\u00e1ch 2: C\u00e1ch t\u00ednh c\u1ea7u l\u00f4 2024 theo \u0111\u1ea7u \u0111u\u00f4i c\u00e2m<\/strong><\/span><\/h4>\nD\u1eef li\u1ec7u \u0111\u1ea7u \u0111u\u00f4i c\u00e2m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gh\u00e9p \u0111\u1ea7u, \u0111u\u00f4i c\u00e2m v\u1edbi nhau ho\u1eb7c k\u1ebft h\u1ee3p ch\u00fang v\u1edbi s\u1ed1 0 \u0111\u1ec3 t\u1ea1o ra c\u00e1c c\u1eb7p s\u1ed1 may m\u1eafn.<\/p>\n
V\u00ed d\u1ee5: H\u00f4m qua c\u00e2m \u0111\u1ea7u 2, \u0111u\u00f4i 3 th\u00ec h\u00f4m nay ch\u00fang ta n\u00ean \u0111\u00e1nh d\u00e0n s\u1ed1 23, 32, 20, 03.<\/p>\n
Tr\u00ean \u0111\u00e2y ch\u00fang t\u00f4i \u0111\u00e3 t\u1ed5ng h\u1ee3p v\u00e0 gi\u1edbi thi\u1ec7u v\u1edbi c\u00e1c b\u1ea1n nh\u1eefng c\u00e1ch t\u00ednh c\u1ea7u l\u00f4 chu\u1ea9n<\/b> b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c quy t\u1eafc to\u00e1n h\u1ecdc. Mong r\u1eb1ng b\u00e0i vi\u1ebft \u0111\u00e3 cung c\u1ea5p cho \u0111\u1ed9c gi\u1ea3 nh\u1eefng th\u00f4ng tin v\u00e0 b\u00e0i h\u1ecdc qu\u00fd b\u00e1u. Qua \u0111\u00f3 c\u00e1c b\u1ea1n c\u00f3 th\u1ec3 soi c\u1ea7u t\u00ednh l\u00f4 \u0111\u1ec1 m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c v\u00e0 hi\u1ec7u qu\u1ea3 nh\u1ea5t.<\/p>\n<\/div>\n<\/article>\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0
\u00a0\u0103n s\u1ed1 cao c\u1ea5p<\/h3>\n
Nh\u1eefng c\u00f4ng th\u1ee9c t\u00ednh l\u00f4 \u0111\u1ec1 theo quy t\u1eafc to\u00e1n h\u1ecdc kh\u00f4ng bao h\u00e0m c\u00e1ch t\u00ednh c\u1ee5 th\u1ec3. Ch\u00fang ta s\u1eed d\u1ee5ng c\u00e1ch n\u00e0y soi c\u1ea7u sao cho t\u00ecm \u0111\u01b0\u1ee3c nh\u1eefng c\u1eb7p s\u1ed1 c\u00f3 t\u1ef7 l\u1ec7 tr\u00fang cao nh\u1ea5t. C\u0103n c\u1ee9 v\u00e0o b\u1ea3ng th\u1ed1ng k\u00ea k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 c\u1ee7a k\u1ef3 tr\u01b0\u1edbc, tu\u1ea7n tr\u01b0\u1edbc, th\u00e1ng tr\u01b0\u1edbc, n\u0103m tr\u01b0\u1edbc \u0111\u1ec3 ph\u00e2n t\u00edch ra c\u00e1c quy lu\u1eadt ra s\u1ed1. M\u1ed7i ng\u01b0\u1eddi ch\u01a1i c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn cho m\u00ecnh c\u00e1ch ph\u00e2n t\u00edch ri\u00eang b\u1ea3n th\u00e2n c\u1ea3m th\u1ea5y tin c\u1eady nh\u1ea5t.<\/p>\n
<\/p>\n
C\u00f4ng d\u1ee5ng c\u1ee7a c\u00e1ch t\u00ednh c\u1ea7u l\u00f4 2024 theo quy t\u1eafc to\u00e1n h\u1ecdc<\/strong><\/span><\/h2>\nM\u1eb7c d\u00f9 x\u1ed5 s\u1ed1 l\u00e0 tr\u00f2 ch\u01a1i c\u00f3 t\u00ednh may r\u1ee7i. Tuy nhi\u00ean kh\u00f4ng th\u1ec3 ph\u1ee7 nh\u1eadn hi\u1ec7u qu\u1ea3 c\u1ee7a soi c\u1ea7u l\u00f4 \u0111\u1ec1 mang l\u1ea1i cho ng\u01b0\u1eddi ch\u01a1i nhi\u1ec1u chi\u1ebfn th\u1eafng. Ch\u00fang ta kh\u00f4ng th\u1ec3 ph\u00e2n t\u00edch, soi c\u1ea7u ch\u00ednh x\u00e1c mi\u1ec5n ph\u00ed 100% nh\u01b0ng ch\u00fang ta c\u00f3 th\u1ec3 n\u00e2ng cao t\u1ef7 l\u1ec7 \u0111\u00e1nh tr\u00fang l\u00ean m\u1ee9c t\u1ed1i \u0111a.<\/p>\n
Tuy r\u1eb1ng kh\u00f4ng ph\u1ea3i ai c\u0169ng bi\u1ebft nh\u1eefng c\u00e1ch m\u00ecnh \u0111ang s\u1eed d\u1ee5ng l\u00e0 m\u1ed9t trong nh\u1eefng c\u00e1ch t\u00ednh c\u1ea7u l\u00f4 chu\u1ea9n b\u1eb1ng quy t\u1eafc to\u00e1n h\u1ecdc. Nh\u01b0ng ch\u00fang ta \u0111ang \u00e1p d\u1ee5ng nh\u1eefng thu\u1eadt to\u00e1n 1 c\u00e1ch r\u1ed9ng r\u00e3i nh\u1eb1m:<\/p>\n
\n- Soi c\u1ea7u, d\u1ef1 \u0111o\u00e1n s\u1ed1 l\u00f4 ch\u00ednh x\u00e1c.<\/li>\n
- Soi c\u1ea7u, d\u1ef1 \u0111o\u00e1n k\u1ebft qu\u1ea3 \u0111\u1ec1 c\u00f3 t\u1ef7 l\u1ec7 tr\u00fang cao.<\/li>\n<\/ul>\n
M\u1ed9t s\u1ed1 th\u1ed1ng k\u00ea cho th\u1ea5y ng\u01b0\u1eddi ch\u01a1i l\u00f4 \u0111\u1ec1 s\u1eed d\u1ee5ng c\u00e1c c\u00e1ch soi c\u1ea7u th\u01b0\u1eddng xuy\u00ean s\u1ebd c\u00f3 t\u1ef7 l\u1ec7 tr\u00fang l\u00f4 \u0111\u1ec1 cao h\u01a1n. M\u1ee9c \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a c\u00e1c con s\u1ed1 \u0111\u01b0\u1ee3c d\u1ef1 \u0111o\u00e1n kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o thu\u1eadt to\u00e1n ph\u1ee9c t\u1ea1p hay \u0111\u01a1n gi\u1ea3n. \u0110\u00f4i khi, c\u00f4ng th\u1ee9c t\u00ednh \u0111\u01a1n gi\u1ea3n l\u1ea1i mang t\u1edbi nh\u1eefng hi\u1ec7u qu\u1ea3 kh\u00f4ng ng\u1edd.<\/p>\n
Hi\u1ec7n nay, c\u00f4ng ngh\u1ec7 4.0 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i gi\u00fap ng\u01b0\u1eddi ch\u01a1i kh\u00f4ng ph\u1ea3i m\u1ea5t qu\u00e1 nhi\u1ec1u th\u1eddi gian cho vi\u1ec7c th\u1ed1ng k\u00ea, t\u00ecm ki\u1ebfm th\u00f4ng tin. B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng nh\u1eefng ph\u1ea7n m\u1ec1m to\u00e1n h\u1ecdc gi\u00fap ch\u00fang ta nhanh ch\u00f3ng \u0111\u01b0a ra nh\u1eefng k\u1ebft qu\u1ea3 t\u00ednh to\u00e1n c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao.<\/p>\n
Kinh nghi\u1ec7m t\u00ecm ra quy lu\u1eadt x\u1ed5 s\u1ed1 <\/strong><\/span><\/h2>\n\u1ee8ng d\u1ee5ng c\u1ee7a quy t\u1eafc to\u00e1n h\u1ecdc trong soi c\u1ea7u l\u00f4 \u0111\u1ec1 r\u1ea5t \u0111a d\u1ea1ng. Ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 soi c\u1ea7u l\u00f4 \u0111\u1ec1 mi\u1ec1n B\u1eafc. V\u00ec \u0111\u00e0i n\u00e0y c\u00f3 nhi\u1ec1u gi\u1ea3i nh\u1ea5t, c\u00e1c b\u1ed9 s\u1ed1 \u0111\u01b0\u1ee3c ra c\u00f3 t\u00ednh ng\u1eabu nhi\u00ean, \u1ea3o di\u1ec7u. K\u00edch th\u00edch \u0111\u01b0\u1ee3c ham mu\u1ed1n chinh ph\u1ee5c c\u1ee7a ng\u01b0\u1eddi ch\u01a1i soi c\u1ea7u.<\/p>\n
Sau nhi\u1ec1u n\u0103m nghi\u00ean c\u1ee9u quy lu\u1eadt x\u1ed5 s\u1ed1 mi\u1ec1n B\u1eafc, ng\u01b0\u1eddi soi c\u1ea7u l\u00f4 \u0111\u1ec1 chuy\u00ean nghi\u1ec7p \u0111\u00e3 t\u00ecm ra nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p t\u00ednh ch\u00ednh x\u00e1c. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 c\u00f4ng th\u1ee9c t\u00ednh b\u1ea5t b\u1ea1i.<\/p>\n
<\/p>\n
C\u00f4ng th\u1ee9c t\u00ednh d\u00e0n \u0111\u1ec1 tr\u0103m tr\u1eadn tr\u0103m th\u1eafng<\/strong><\/span><\/h3>\nX\u00e1c su\u1ea5t tr\u00fang \u0111\u1ec1 c\u1ef1c th\u1ea5p, ph\u01b0\u01a1ng ph\u00e1p d\u00e0n \u0111\u1ec1 cho th\u1ea5y hi\u1ec7u qu\u1ea3 t\u1ed1i \u01b0u khi ng\u01b0\u1eddi ch\u01a1i c\u00f3 th\u1ec3 \u0103n \u0111\u1ec1 h\u00e0ng ng\u00e0y. V\u1edbi m\u1ee9c tr\u1ea3 th\u01b0\u1edfng cao nh\u01b0 hi\u1ec7n nay, vi\u1ec7c \u0103n \u0111\u1ec1 v\u00e0 c\u00f3 l\u00e3i l\u00e0 \u0111i\u1ec1u d\u1ec5 x\u1ea3y ra.<\/p>\n
C\u00f4ng th\u1ee9c 1: D\u00e0n \u0111\u1ec1 mi\u1ec1n B\u1eafc<\/strong><\/span><\/h4>\n\n- D\u00e0n \u0111\u1ec1 s\u1ed1 ch\u1eb5n ch\u1eb5n: 00, 02, 04, 06, 08, 20, 22, 24, 26, 28, 40, 42, 44, 46, 48, 60, 62, 64, 66, 68, 80, 82, 84, 86, 88.<\/li>\n
- D\u00e0n \u0111\u1ec1 s\u1ed1 ch\u1eb5n l\u1ebb: 01, 03, 05, 07, 09, 21, 23, 25, 27, 29, 41, 43, 45, 47, 49, 61, 63, 65, 67, 69, 81, 83, 85, 87, 89.<\/li>\n
- D\u00e0n \u0111\u1ec1 s\u1ed1 l\u1ebb l\u1ebb: 11, 13, 15, 17, 19, 31, 33, 35, 37, 39, 51, 53, 55, 57, 59, 71, 73, 75, 77, 79, 91, 93, 95, 97, 99.<\/li>\n
- D\u00e0n \u0111\u1ec1 s\u1ed1 l\u1ebb ch\u1eb5n: 12, 14, 16, 18, 30, 32, 34, 36, 38, 50, 52, 54, 56, 58, 70, 72, 74, 76, 78, 90, 92, 94, 96, 98.<\/li>\n<\/ul>\n
C\u00f4ng th\u1ee9c 2: C\u00e1ch t\u00ednh c\u1ea7u l\u00f4 chu\u1ea9n d\u1ef1a v\u00e0o ch\u1ea1m, t\u1ed5ng ch\u1ea1m<\/strong><\/span><\/h4>\nC\u00e1ch \u0111\u00e1nh l\u00f4 \u0111\u1ec1 d\u1ef1a theo t\u1ed5ng, ch\u1ea1m, t\u1ed5ng ch\u1ea1m \u0111\u01b0\u1ee3c \u0111a s\u1ed1 cho r\u1eb1ng l\u00e0 c\u00e1ch t\u00ednh nhanh v\u00e0 \u0111\u01a1n gi\u1ea3n nh\u1ea5t. B\u1eaft \u0111\u1ec1 d\u1ef1a theo c\u00e1ch n\u00e0y cho ra c\u00e1c d\u00e0n \u0111\u1ec1 thu\u1ed9c c\u00e1c m\u1ee9c t\u1eeb 10 \u0111\u1ebfn 80 s\u1ed1. C\u0103n c\u1ee9 v\u00e0o KQXS \u0111\u00e3 ra \u0111\u1ec3 c\u00f3 nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh sau:<\/p>\n
\n- B\u1eaft ch\u1ea1m \u0111\u1ec1 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t h\u00f4m tr\u01b0\u1edbc.<\/li>\n
- \u0110\u00e1nh b\u1ec7t t\u1ed5ng (\u0111\u00e1nh t\u1ed5ng \u0111\u1ec1 ra tr\u01b0\u1edbc \u0111\u00f3)<\/li>\n
- \u0110\u00e1nh ch\u1ea1m \u0111\u1ec1 theo c\u00e1c v\u1ecb tr\u00ed \u0103n th\u00f4ng li\u00ean t\u1ee5c tr\u00ean KQXS.<\/li>\n
- Nu\u00f4i c\u00e1c t\u1ed5ng \u0111\u1ec1 ch\u01b0a ra.<\/li>\n<\/ul>\n
C\u00f4ng th\u1ee9c t\u00ednh l\u00f4 si\u00eau \u0111\u1eb3ng<\/strong><\/span><\/h3>\nCh\u00fang ta c\u0169ng c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng c\u00e1c quy t\u1eafc to\u00e1n h\u1ecdc \u0111\u1ec3 t\u00ednh l\u00f4 ch\u00ednh x\u00e1c. C\u1ea7u l\u00f4 c\u00f3 nhi\u1ec1u h\u01a1n, x\u00e1c su\u1ea5t tr\u00fang l\u00f4 cao h\u01a1n. Tuy nhi\u00ean, v\u1eabn c\u00f3 1 v\u00e0i c\u00e1ch t\u00ednh c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao h\u01a1n h\u1eb3n.<\/p>\n
C\u00e1ch 1: Theo b\u1ea1c nh\u1edb<\/strong><\/span><\/h4>\nS\u1eed d\u1ee5ng t\u00ednh ch\u1ea5t b\u1eafc c\u1ea7u ch\u00fang ta t\u00ednh b\u1ea1c nh\u1edb g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c s\u1ed1 c\u00f3 t\u1ef7 l\u1ec7 c\u00f9ng ra cao. C\u00e1ch soi c\u1ea7u n\u00e0y \u0111\u01b0\u1ee3c nhi\u1ec1u th\u1ebf h\u1ec7 t\u00ecm ki\u1ebfm v\u00e0 ho\u00e0n thi\u1ec7n. C\u00f3 r\u1ea5t nhi\u1ec1u quy t\u1eafc t\u00ednh b\u1ea1c nh\u1edb, khi soi c\u1ea7u ch\u00fa \u00fd xem l\u1ea1i ch\u00ednh x\u00e1c tr\u01b0\u1edbc khi \u0111\u00e1nh.<\/p>\n
C\u00e1ch 2: C\u00e1ch t\u00ednh c\u1ea7u l\u00f4 2024 theo \u0111\u1ea7u \u0111u\u00f4i c\u00e2m<\/strong><\/span><\/h4>\nD\u1eef li\u1ec7u \u0111\u1ea7u \u0111u\u00f4i c\u00e2m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gh\u00e9p \u0111\u1ea7u, \u0111u\u00f4i c\u00e2m v\u1edbi nhau ho\u1eb7c k\u1ebft h\u1ee3p ch\u00fang v\u1edbi s\u1ed1 0 \u0111\u1ec3 t\u1ea1o ra c\u00e1c c\u1eb7p s\u1ed1 may m\u1eafn.<\/p>\n
V\u00ed d\u1ee5: H\u00f4m qua c\u00e2m \u0111\u1ea7u 2, \u0111u\u00f4i 3 th\u00ec h\u00f4m nay ch\u00fang ta n\u00ean \u0111\u00e1nh d\u00e0n s\u1ed1 23, 32, 20, 03.<\/p>\n
Tr\u00ean \u0111\u00e2y ch\u00fang t\u00f4i \u0111\u00e3 t\u1ed5ng h\u1ee3p v\u00e0 gi\u1edbi thi\u1ec7u v\u1edbi c\u00e1c b\u1ea1n nh\u1eefng c\u00e1ch t\u00ednh c\u1ea7u l\u00f4 chu\u1ea9n<\/b> b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c quy t\u1eafc to\u00e1n h\u1ecdc. Mong r\u1eb1ng b\u00e0i vi\u1ebft \u0111\u00e3 cung c\u1ea5p cho \u0111\u1ed9c gi\u1ea3 nh\u1eefng th\u00f4ng tin v\u00e0 b\u00e0i h\u1ecdc qu\u00fd b\u00e1u. Qua \u0111\u00f3 c\u00e1c b\u1ea1n c\u00f3 th\u1ec3 soi c\u1ea7u t\u00ednh l\u00f4 \u0111\u1ec1 m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c v\u00e0 hi\u1ec7u qu\u1ea3 nh\u1ea5t.<\/p>\n<\/div>\n<\/article>\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0
\u00a0\u0103n s\u1ed1 cao c\u1ea5p<\/h3>\n
M\u1ed9t s\u1ed1 th\u1ed1ng k\u00ea cho th\u1ea5y ng\u01b0\u1eddi ch\u01a1i l\u00f4 \u0111\u1ec1 s\u1eed d\u1ee5ng c\u00e1c c\u00e1ch soi c\u1ea7u th\u01b0\u1eddng xuy\u00ean s\u1ebd c\u00f3 t\u1ef7 l\u1ec7 tr\u00fang l\u00f4 \u0111\u1ec1 cao h\u01a1n. M\u1ee9c \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a c\u00e1c con s\u1ed1 \u0111\u01b0\u1ee3c d\u1ef1 \u0111o\u00e1n kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o thu\u1eadt to\u00e1n ph\u1ee9c t\u1ea1p hay \u0111\u01a1n gi\u1ea3n. \u0110\u00f4i khi, c\u00f4ng th\u1ee9c t\u00ednh \u0111\u01a1n gi\u1ea3n l\u1ea1i mang t\u1edbi nh\u1eefng hi\u1ec7u qu\u1ea3 kh\u00f4ng ng\u1edd.<\/p>\n
Hi\u1ec7n nay, c\u00f4ng ngh\u1ec7 4.0 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i gi\u00fap ng\u01b0\u1eddi ch\u01a1i kh\u00f4ng ph\u1ea3i m\u1ea5t qu\u00e1 nhi\u1ec1u th\u1eddi gian cho vi\u1ec7c th\u1ed1ng k\u00ea, t\u00ecm ki\u1ebfm th\u00f4ng tin. B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng nh\u1eefng ph\u1ea7n m\u1ec1m to\u00e1n h\u1ecdc gi\u00fap ch\u00fang ta nhanh ch\u00f3ng \u0111\u01b0a ra nh\u1eefng k\u1ebft qu\u1ea3 t\u00ednh to\u00e1n c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao.<\/p>\n
Kinh nghi\u1ec7m t\u00ecm ra quy lu\u1eadt x\u1ed5 s\u1ed1 <\/strong><\/span><\/h2>\n\u1ee8ng d\u1ee5ng c\u1ee7a quy t\u1eafc to\u00e1n h\u1ecdc trong soi c\u1ea7u l\u00f4 \u0111\u1ec1 r\u1ea5t \u0111a d\u1ea1ng. Ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 soi c\u1ea7u l\u00f4 \u0111\u1ec1 mi\u1ec1n B\u1eafc. V\u00ec \u0111\u00e0i n\u00e0y c\u00f3 nhi\u1ec1u gi\u1ea3i nh\u1ea5t, c\u00e1c b\u1ed9 s\u1ed1 \u0111\u01b0\u1ee3c ra c\u00f3 t\u00ednh ng\u1eabu nhi\u00ean, \u1ea3o di\u1ec7u. K\u00edch th\u00edch \u0111\u01b0\u1ee3c ham mu\u1ed1n chinh ph\u1ee5c c\u1ee7a ng\u01b0\u1eddi ch\u01a1i soi c\u1ea7u.<\/p>\n
Sau nhi\u1ec1u n\u0103m nghi\u00ean c\u1ee9u quy lu\u1eadt x\u1ed5 s\u1ed1 mi\u1ec1n B\u1eafc, ng\u01b0\u1eddi soi c\u1ea7u l\u00f4 \u0111\u1ec1 chuy\u00ean nghi\u1ec7p \u0111\u00e3 t\u00ecm ra nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p t\u00ednh ch\u00ednh x\u00e1c. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 c\u00f4ng th\u1ee9c t\u00ednh b\u1ea5t b\u1ea1i.<\/p>\n
<\/p>\n
C\u00f4ng th\u1ee9c t\u00ednh d\u00e0n \u0111\u1ec1 tr\u0103m tr\u1eadn tr\u0103m th\u1eafng<\/strong><\/span><\/h3>\nX\u00e1c su\u1ea5t tr\u00fang \u0111\u1ec1 c\u1ef1c th\u1ea5p, ph\u01b0\u01a1ng ph\u00e1p d\u00e0n \u0111\u1ec1 cho th\u1ea5y hi\u1ec7u qu\u1ea3 t\u1ed1i \u01b0u khi ng\u01b0\u1eddi ch\u01a1i c\u00f3 th\u1ec3 \u0103n \u0111\u1ec1 h\u00e0ng ng\u00e0y. V\u1edbi m\u1ee9c tr\u1ea3 th\u01b0\u1edfng cao nh\u01b0 hi\u1ec7n nay, vi\u1ec7c \u0103n \u0111\u1ec1 v\u00e0 c\u00f3 l\u00e3i l\u00e0 \u0111i\u1ec1u d\u1ec5 x\u1ea3y ra.<\/p>\n
C\u00f4ng th\u1ee9c 1: D\u00e0n \u0111\u1ec1 mi\u1ec1n B\u1eafc<\/strong><\/span><\/h4>\n\n- D\u00e0n \u0111\u1ec1 s\u1ed1 ch\u1eb5n ch\u1eb5n: 00, 02, 04, 06, 08, 20, 22, 24, 26, 28, 40, 42, 44, 46, 48, 60, 62, 64, 66, 68, 80, 82, 84, 86, 88.<\/li>\n
- D\u00e0n \u0111\u1ec1 s\u1ed1 ch\u1eb5n l\u1ebb: 01, 03, 05, 07, 09, 21, 23, 25, 27, 29, 41, 43, 45, 47, 49, 61, 63, 65, 67, 69, 81, 83, 85, 87, 89.<\/li>\n
- D\u00e0n \u0111\u1ec1 s\u1ed1 l\u1ebb l\u1ebb: 11, 13, 15, 17, 19, 31, 33, 35, 37, 39, 51, 53, 55, 57, 59, 71, 73, 75, 77, 79, 91, 93, 95, 97, 99.<\/li>\n
- D\u00e0n \u0111\u1ec1 s\u1ed1 l\u1ebb ch\u1eb5n: 12, 14, 16, 18, 30, 32, 34, 36, 38, 50, 52, 54, 56, 58, 70, 72, 74, 76, 78, 90, 92, 94, 96, 98.<\/li>\n<\/ul>\n
C\u00f4ng th\u1ee9c 2: C\u00e1ch t\u00ednh c\u1ea7u l\u00f4 chu\u1ea9n d\u1ef1a v\u00e0o ch\u1ea1m, t\u1ed5ng ch\u1ea1m<\/strong><\/span><\/h4>\nC\u00e1ch \u0111\u00e1nh l\u00f4 \u0111\u1ec1 d\u1ef1a theo t\u1ed5ng, ch\u1ea1m, t\u1ed5ng ch\u1ea1m \u0111\u01b0\u1ee3c \u0111a s\u1ed1 cho r\u1eb1ng l\u00e0 c\u00e1ch t\u00ednh nhanh v\u00e0 \u0111\u01a1n gi\u1ea3n nh\u1ea5t. B\u1eaft \u0111\u1ec1 d\u1ef1a theo c\u00e1ch n\u00e0y cho ra c\u00e1c d\u00e0n \u0111\u1ec1 thu\u1ed9c c\u00e1c m\u1ee9c t\u1eeb 10 \u0111\u1ebfn 80 s\u1ed1. C\u0103n c\u1ee9 v\u00e0o KQXS \u0111\u00e3 ra \u0111\u1ec3 c\u00f3 nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh sau:<\/p>\n
\n- B\u1eaft ch\u1ea1m \u0111\u1ec1 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t h\u00f4m tr\u01b0\u1edbc.<\/li>\n
- \u0110\u00e1nh b\u1ec7t t\u1ed5ng (\u0111\u00e1nh t\u1ed5ng \u0111\u1ec1 ra tr\u01b0\u1edbc \u0111\u00f3)<\/li>\n
- \u0110\u00e1nh ch\u1ea1m \u0111\u1ec1 theo c\u00e1c v\u1ecb tr\u00ed \u0103n th\u00f4ng li\u00ean t\u1ee5c tr\u00ean KQXS.<\/li>\n
- Nu\u00f4i c\u00e1c t\u1ed5ng \u0111\u1ec1 ch\u01b0a ra.<\/li>\n<\/ul>\n
C\u00f4ng th\u1ee9c t\u00ednh l\u00f4 si\u00eau \u0111\u1eb3ng<\/strong><\/span><\/h3>\nCh\u00fang ta c\u0169ng c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng c\u00e1c quy t\u1eafc to\u00e1n h\u1ecdc \u0111\u1ec3 t\u00ednh l\u00f4 ch\u00ednh x\u00e1c. C\u1ea7u l\u00f4 c\u00f3 nhi\u1ec1u h\u01a1n, x\u00e1c su\u1ea5t tr\u00fang l\u00f4 cao h\u01a1n. Tuy nhi\u00ean, v\u1eabn c\u00f3 1 v\u00e0i c\u00e1ch t\u00ednh c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao h\u01a1n h\u1eb3n.<\/p>\n
C\u00e1ch 1: Theo b\u1ea1c nh\u1edb<\/strong><\/span><\/h4>\nS\u1eed d\u1ee5ng t\u00ednh ch\u1ea5t b\u1eafc c\u1ea7u ch\u00fang ta t\u00ednh b\u1ea1c nh\u1edb g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c s\u1ed1 c\u00f3 t\u1ef7 l\u1ec7 c\u00f9ng ra cao. C\u00e1ch soi c\u1ea7u n\u00e0y \u0111\u01b0\u1ee3c nhi\u1ec1u th\u1ebf h\u1ec7 t\u00ecm ki\u1ebfm v\u00e0 ho\u00e0n thi\u1ec7n. C\u00f3 r\u1ea5t nhi\u1ec1u quy t\u1eafc t\u00ednh b\u1ea1c nh\u1edb, khi soi c\u1ea7u ch\u00fa \u00fd xem l\u1ea1i ch\u00ednh x\u00e1c tr\u01b0\u1edbc khi \u0111\u00e1nh.<\/p>\n
C\u00e1ch 2: C\u00e1ch t\u00ednh c\u1ea7u l\u00f4 2024 theo \u0111\u1ea7u \u0111u\u00f4i c\u00e2m<\/strong><\/span><\/h4>\nD\u1eef li\u1ec7u \u0111\u1ea7u \u0111u\u00f4i c\u00e2m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gh\u00e9p \u0111\u1ea7u, \u0111u\u00f4i c\u00e2m v\u1edbi nhau ho\u1eb7c k\u1ebft h\u1ee3p ch\u00fang v\u1edbi s\u1ed1 0 \u0111\u1ec3 t\u1ea1o ra c\u00e1c c\u1eb7p s\u1ed1 may m\u1eafn.<\/p>\n
V\u00ed d\u1ee5: H\u00f4m qua c\u00e2m \u0111\u1ea7u 2, \u0111u\u00f4i 3 th\u00ec h\u00f4m nay ch\u00fang ta n\u00ean \u0111\u00e1nh d\u00e0n s\u1ed1 23, 32, 20, 03.<\/p>\n
Tr\u00ean \u0111\u00e2y ch\u00fang t\u00f4i \u0111\u00e3 t\u1ed5ng h\u1ee3p v\u00e0 gi\u1edbi thi\u1ec7u v\u1edbi c\u00e1c b\u1ea1n nh\u1eefng c\u00e1ch t\u00ednh c\u1ea7u l\u00f4 chu\u1ea9n<\/b> b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c quy t\u1eafc to\u00e1n h\u1ecdc. Mong r\u1eb1ng b\u00e0i vi\u1ebft \u0111\u00e3 cung c\u1ea5p cho \u0111\u1ed9c gi\u1ea3 nh\u1eefng th\u00f4ng tin v\u00e0 b\u00e0i h\u1ecdc qu\u00fd b\u00e1u. Qua \u0111\u00f3 c\u00e1c b\u1ea1n c\u00f3 th\u1ec3 soi c\u1ea7u t\u00ednh l\u00f4 \u0111\u1ec1 m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c v\u00e0 hi\u1ec7u qu\u1ea3 nh\u1ea5t.<\/p>\n<\/div>\n<\/article>\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0
\u00a0\u0103n s\u1ed1 cao c\u1ea5p<\/h3>\n
![\"Kinh](\"\/wp-content\/uploads\/2024\/08\/thong-tin-va-cach-tinh-lo-truot-an-bao-nhieu-600x413-1-1-600x330-1.jpg\")
X\u00e1c su\u1ea5t tr\u00fang \u0111\u1ec1 c\u1ef1c th\u1ea5p, ph\u01b0\u01a1ng ph\u00e1p d\u00e0n \u0111\u1ec1 cho th\u1ea5y hi\u1ec7u qu\u1ea3 t\u1ed1i \u01b0u khi ng\u01b0\u1eddi ch\u01a1i c\u00f3 th\u1ec3 \u0103n \u0111\u1ec1 h\u00e0ng ng\u00e0y. V\u1edbi m\u1ee9c tr\u1ea3 th\u01b0\u1edfng cao nh\u01b0 hi\u1ec7n nay, vi\u1ec7c \u0103n \u0111\u1ec1 v\u00e0 c\u00f3 l\u00e3i l\u00e0 \u0111i\u1ec1u d\u1ec5 x\u1ea3y ra.<\/p>\n
C\u00f4ng th\u1ee9c 1: D\u00e0n \u0111\u1ec1 mi\u1ec1n B\u1eafc<\/strong><\/span><\/h4>\n\n- D\u00e0n \u0111\u1ec1 s\u1ed1 ch\u1eb5n ch\u1eb5n: 00, 02, 04, 06, 08, 20, 22, 24, 26, 28, 40, 42, 44, 46, 48, 60, 62, 64, 66, 68, 80, 82, 84, 86, 88.<\/li>\n
- D\u00e0n \u0111\u1ec1 s\u1ed1 ch\u1eb5n l\u1ebb: 01, 03, 05, 07, 09, 21, 23, 25, 27, 29, 41, 43, 45, 47, 49, 61, 63, 65, 67, 69, 81, 83, 85, 87, 89.<\/li>\n
- D\u00e0n \u0111\u1ec1 s\u1ed1 l\u1ebb l\u1ebb: 11, 13, 15, 17, 19, 31, 33, 35, 37, 39, 51, 53, 55, 57, 59, 71, 73, 75, 77, 79, 91, 93, 95, 97, 99.<\/li>\n
- D\u00e0n \u0111\u1ec1 s\u1ed1 l\u1ebb ch\u1eb5n: 12, 14, 16, 18, 30, 32, 34, 36, 38, 50, 52, 54, 56, 58, 70, 72, 74, 76, 78, 90, 92, 94, 96, 98.<\/li>\n<\/ul>\n
C\u00f4ng th\u1ee9c 2: C\u00e1ch t\u00ednh c\u1ea7u l\u00f4 chu\u1ea9n d\u1ef1a v\u00e0o ch\u1ea1m, t\u1ed5ng ch\u1ea1m<\/strong><\/span><\/h4>\nC\u00e1ch \u0111\u00e1nh l\u00f4 \u0111\u1ec1 d\u1ef1a theo t\u1ed5ng, ch\u1ea1m, t\u1ed5ng ch\u1ea1m \u0111\u01b0\u1ee3c \u0111a s\u1ed1 cho r\u1eb1ng l\u00e0 c\u00e1ch t\u00ednh nhanh v\u00e0 \u0111\u01a1n gi\u1ea3n nh\u1ea5t. B\u1eaft \u0111\u1ec1 d\u1ef1a theo c\u00e1ch n\u00e0y cho ra c\u00e1c d\u00e0n \u0111\u1ec1 thu\u1ed9c c\u00e1c m\u1ee9c t\u1eeb 10 \u0111\u1ebfn 80 s\u1ed1. C\u0103n c\u1ee9 v\u00e0o KQXS \u0111\u00e3 ra \u0111\u1ec3 c\u00f3 nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh sau:<\/p>\n
\n- B\u1eaft ch\u1ea1m \u0111\u1ec1 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t h\u00f4m tr\u01b0\u1edbc.<\/li>\n
- \u0110\u00e1nh b\u1ec7t t\u1ed5ng (\u0111\u00e1nh t\u1ed5ng \u0111\u1ec1 ra tr\u01b0\u1edbc \u0111\u00f3)<\/li>\n
- \u0110\u00e1nh ch\u1ea1m \u0111\u1ec1 theo c\u00e1c v\u1ecb tr\u00ed \u0103n th\u00f4ng li\u00ean t\u1ee5c tr\u00ean KQXS.<\/li>\n
- Nu\u00f4i c\u00e1c t\u1ed5ng \u0111\u1ec1 ch\u01b0a ra.<\/li>\n<\/ul>\n
C\u00f4ng th\u1ee9c t\u00ednh l\u00f4 si\u00eau \u0111\u1eb3ng<\/strong><\/span><\/h3>\nCh\u00fang ta c\u0169ng c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng c\u00e1c quy t\u1eafc to\u00e1n h\u1ecdc \u0111\u1ec3 t\u00ednh l\u00f4 ch\u00ednh x\u00e1c. C\u1ea7u l\u00f4 c\u00f3 nhi\u1ec1u h\u01a1n, x\u00e1c su\u1ea5t tr\u00fang l\u00f4 cao h\u01a1n. Tuy nhi\u00ean, v\u1eabn c\u00f3 1 v\u00e0i c\u00e1ch t\u00ednh c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao h\u01a1n h\u1eb3n.<\/p>\n
C\u00e1ch 1: Theo b\u1ea1c nh\u1edb<\/strong><\/span><\/h4>\nS\u1eed d\u1ee5ng t\u00ednh ch\u1ea5t b\u1eafc c\u1ea7u ch\u00fang ta t\u00ednh b\u1ea1c nh\u1edb g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c s\u1ed1 c\u00f3 t\u1ef7 l\u1ec7 c\u00f9ng ra cao. C\u00e1ch soi c\u1ea7u n\u00e0y \u0111\u01b0\u1ee3c nhi\u1ec1u th\u1ebf h\u1ec7 t\u00ecm ki\u1ebfm v\u00e0 ho\u00e0n thi\u1ec7n. C\u00f3 r\u1ea5t nhi\u1ec1u quy t\u1eafc t\u00ednh b\u1ea1c nh\u1edb, khi soi c\u1ea7u ch\u00fa \u00fd xem l\u1ea1i ch\u00ednh x\u00e1c tr\u01b0\u1edbc khi \u0111\u00e1nh.<\/p>\n
C\u00e1ch 2: C\u00e1ch t\u00ednh c\u1ea7u l\u00f4 2024 theo \u0111\u1ea7u \u0111u\u00f4i c\u00e2m<\/strong><\/span><\/h4>\nD\u1eef li\u1ec7u \u0111\u1ea7u \u0111u\u00f4i c\u00e2m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gh\u00e9p \u0111\u1ea7u, \u0111u\u00f4i c\u00e2m v\u1edbi nhau ho\u1eb7c k\u1ebft h\u1ee3p ch\u00fang v\u1edbi s\u1ed1 0 \u0111\u1ec3 t\u1ea1o ra c\u00e1c c\u1eb7p s\u1ed1 may m\u1eafn.<\/p>\n
V\u00ed d\u1ee5: H\u00f4m qua c\u00e2m \u0111\u1ea7u 2, \u0111u\u00f4i 3 th\u00ec h\u00f4m nay ch\u00fang ta n\u00ean \u0111\u00e1nh d\u00e0n s\u1ed1 23, 32, 20, 03.<\/p>\n
Tr\u00ean \u0111\u00e2y ch\u00fang t\u00f4i \u0111\u00e3 t\u1ed5ng h\u1ee3p v\u00e0 gi\u1edbi thi\u1ec7u v\u1edbi c\u00e1c b\u1ea1n nh\u1eefng c\u00e1ch t\u00ednh c\u1ea7u l\u00f4 chu\u1ea9n<\/b> b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c quy t\u1eafc to\u00e1n h\u1ecdc. Mong r\u1eb1ng b\u00e0i vi\u1ebft \u0111\u00e3 cung c\u1ea5p cho \u0111\u1ed9c gi\u1ea3 nh\u1eefng th\u00f4ng tin v\u00e0 b\u00e0i h\u1ecdc qu\u00fd b\u00e1u. Qua \u0111\u00f3 c\u00e1c b\u1ea1n c\u00f3 th\u1ec3 soi c\u1ea7u t\u00ednh l\u00f4 \u0111\u1ec1 m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c v\u00e0 hi\u1ec7u qu\u1ea3 nh\u1ea5t.<\/p>\n<\/div>\n<\/article>\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0
\u00a0\u0103n s\u1ed1 cao c\u1ea5p<\/h3>\n
C\u00f4ng th\u1ee9c 2: C\u00e1ch t\u00ednh c\u1ea7u l\u00f4 chu\u1ea9n d\u1ef1a v\u00e0o ch\u1ea1m, t\u1ed5ng ch\u1ea1m<\/strong><\/span><\/h4>\nC\u00e1ch \u0111\u00e1nh l\u00f4 \u0111\u1ec1 d\u1ef1a theo t\u1ed5ng, ch\u1ea1m, t\u1ed5ng ch\u1ea1m \u0111\u01b0\u1ee3c \u0111a s\u1ed1 cho r\u1eb1ng l\u00e0 c\u00e1ch t\u00ednh nhanh v\u00e0 \u0111\u01a1n gi\u1ea3n nh\u1ea5t. B\u1eaft \u0111\u1ec1 d\u1ef1a theo c\u00e1ch n\u00e0y cho ra c\u00e1c d\u00e0n \u0111\u1ec1 thu\u1ed9c c\u00e1c m\u1ee9c t\u1eeb 10 \u0111\u1ebfn 80 s\u1ed1. C\u0103n c\u1ee9 v\u00e0o KQXS \u0111\u00e3 ra \u0111\u1ec3 c\u00f3 nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh sau:<\/p>\n
\n- B\u1eaft ch\u1ea1m \u0111\u1ec1 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t h\u00f4m tr\u01b0\u1edbc.<\/li>\n
- \u0110\u00e1nh b\u1ec7t t\u1ed5ng (\u0111\u00e1nh t\u1ed5ng \u0111\u1ec1 ra tr\u01b0\u1edbc \u0111\u00f3)<\/li>\n
- \u0110\u00e1nh ch\u1ea1m \u0111\u1ec1 theo c\u00e1c v\u1ecb tr\u00ed \u0103n th\u00f4ng li\u00ean t\u1ee5c tr\u00ean KQXS.<\/li>\n
- Nu\u00f4i c\u00e1c t\u1ed5ng \u0111\u1ec1 ch\u01b0a ra.<\/li>\n<\/ul>\n
C\u00f4ng th\u1ee9c t\u00ednh l\u00f4 si\u00eau \u0111\u1eb3ng<\/strong><\/span><\/h3>\nCh\u00fang ta c\u0169ng c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng c\u00e1c quy t\u1eafc to\u00e1n h\u1ecdc \u0111\u1ec3 t\u00ednh l\u00f4 ch\u00ednh x\u00e1c. C\u1ea7u l\u00f4 c\u00f3 nhi\u1ec1u h\u01a1n, x\u00e1c su\u1ea5t tr\u00fang l\u00f4 cao h\u01a1n. Tuy nhi\u00ean, v\u1eabn c\u00f3 1 v\u00e0i c\u00e1ch t\u00ednh c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao h\u01a1n h\u1eb3n.<\/p>\n
C\u00e1ch 1: Theo b\u1ea1c nh\u1edb<\/strong><\/span><\/h4>\nS\u1eed d\u1ee5ng t\u00ednh ch\u1ea5t b\u1eafc c\u1ea7u ch\u00fang ta t\u00ednh b\u1ea1c nh\u1edb g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c s\u1ed1 c\u00f3 t\u1ef7 l\u1ec7 c\u00f9ng ra cao. C\u00e1ch soi c\u1ea7u n\u00e0y \u0111\u01b0\u1ee3c nhi\u1ec1u th\u1ebf h\u1ec7 t\u00ecm ki\u1ebfm v\u00e0 ho\u00e0n thi\u1ec7n. C\u00f3 r\u1ea5t nhi\u1ec1u quy t\u1eafc t\u00ednh b\u1ea1c nh\u1edb, khi soi c\u1ea7u ch\u00fa \u00fd xem l\u1ea1i ch\u00ednh x\u00e1c tr\u01b0\u1edbc khi \u0111\u00e1nh.<\/p>\n
C\u00e1ch 2: C\u00e1ch t\u00ednh c\u1ea7u l\u00f4 2024 theo \u0111\u1ea7u \u0111u\u00f4i c\u00e2m<\/strong><\/span><\/h4>\nD\u1eef li\u1ec7u \u0111\u1ea7u \u0111u\u00f4i c\u00e2m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gh\u00e9p \u0111\u1ea7u, \u0111u\u00f4i c\u00e2m v\u1edbi nhau ho\u1eb7c k\u1ebft h\u1ee3p ch\u00fang v\u1edbi s\u1ed1 0 \u0111\u1ec3 t\u1ea1o ra c\u00e1c c\u1eb7p s\u1ed1 may m\u1eafn.<\/p>\n
V\u00ed d\u1ee5: H\u00f4m qua c\u00e2m \u0111\u1ea7u 2, \u0111u\u00f4i 3 th\u00ec h\u00f4m nay ch\u00fang ta n\u00ean \u0111\u00e1nh d\u00e0n s\u1ed1 23, 32, 20, 03.<\/p>\n
Tr\u00ean \u0111\u00e2y ch\u00fang t\u00f4i \u0111\u00e3 t\u1ed5ng h\u1ee3p v\u00e0 gi\u1edbi thi\u1ec7u v\u1edbi c\u00e1c b\u1ea1n nh\u1eefng c\u00e1ch t\u00ednh c\u1ea7u l\u00f4 chu\u1ea9n<\/b> b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c quy t\u1eafc to\u00e1n h\u1ecdc. Mong r\u1eb1ng b\u00e0i vi\u1ebft \u0111\u00e3 cung c\u1ea5p cho \u0111\u1ed9c gi\u1ea3 nh\u1eefng th\u00f4ng tin v\u00e0 b\u00e0i h\u1ecdc qu\u00fd b\u00e1u. Qua \u0111\u00f3 c\u00e1c b\u1ea1n c\u00f3 th\u1ec3 soi c\u1ea7u t\u00ednh l\u00f4 \u0111\u1ec1 m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c v\u00e0 hi\u1ec7u qu\u1ea3 nh\u1ea5t.<\/p>\n<\/div>\n<\/article>\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0
\u00a0\u0103n s\u1ed1 cao c\u1ea5p<\/h3>\n
C\u00f4ng th\u1ee9c t\u00ednh l\u00f4 si\u00eau \u0111\u1eb3ng<\/strong><\/span><\/h3>\nCh\u00fang ta c\u0169ng c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng c\u00e1c quy t\u1eafc to\u00e1n h\u1ecdc \u0111\u1ec3 t\u00ednh l\u00f4 ch\u00ednh x\u00e1c. C\u1ea7u l\u00f4 c\u00f3 nhi\u1ec1u h\u01a1n, x\u00e1c su\u1ea5t tr\u00fang l\u00f4 cao h\u01a1n. Tuy nhi\u00ean, v\u1eabn c\u00f3 1 v\u00e0i c\u00e1ch t\u00ednh c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao h\u01a1n h\u1eb3n.<\/p>\n
C\u00e1ch 1: Theo b\u1ea1c nh\u1edb<\/strong><\/span><\/h4>\nS\u1eed d\u1ee5ng t\u00ednh ch\u1ea5t b\u1eafc c\u1ea7u ch\u00fang ta t\u00ednh b\u1ea1c nh\u1edb g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c s\u1ed1 c\u00f3 t\u1ef7 l\u1ec7 c\u00f9ng ra cao. C\u00e1ch soi c\u1ea7u n\u00e0y \u0111\u01b0\u1ee3c nhi\u1ec1u th\u1ebf h\u1ec7 t\u00ecm ki\u1ebfm v\u00e0 ho\u00e0n thi\u1ec7n. C\u00f3 r\u1ea5t nhi\u1ec1u quy t\u1eafc t\u00ednh b\u1ea1c nh\u1edb, khi soi c\u1ea7u ch\u00fa \u00fd xem l\u1ea1i ch\u00ednh x\u00e1c tr\u01b0\u1edbc khi \u0111\u00e1nh.<\/p>\n
C\u00e1ch 2: C\u00e1ch t\u00ednh c\u1ea7u l\u00f4 2024 theo \u0111\u1ea7u \u0111u\u00f4i c\u00e2m<\/strong><\/span><\/h4>\nD\u1eef li\u1ec7u \u0111\u1ea7u \u0111u\u00f4i c\u00e2m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gh\u00e9p \u0111\u1ea7u, \u0111u\u00f4i c\u00e2m v\u1edbi nhau ho\u1eb7c k\u1ebft h\u1ee3p ch\u00fang v\u1edbi s\u1ed1 0 \u0111\u1ec3 t\u1ea1o ra c\u00e1c c\u1eb7p s\u1ed1 may m\u1eafn.<\/p>\n
V\u00ed d\u1ee5: H\u00f4m qua c\u00e2m \u0111\u1ea7u 2, \u0111u\u00f4i 3 th\u00ec h\u00f4m nay ch\u00fang ta n\u00ean \u0111\u00e1nh d\u00e0n s\u1ed1 23, 32, 20, 03.<\/p>\n
Tr\u00ean \u0111\u00e2y ch\u00fang t\u00f4i \u0111\u00e3 t\u1ed5ng h\u1ee3p v\u00e0 gi\u1edbi thi\u1ec7u v\u1edbi c\u00e1c b\u1ea1n nh\u1eefng c\u00e1ch t\u00ednh c\u1ea7u l\u00f4 chu\u1ea9n<\/b> b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c quy t\u1eafc to\u00e1n h\u1ecdc. Mong r\u1eb1ng b\u00e0i vi\u1ebft \u0111\u00e3 cung c\u1ea5p cho \u0111\u1ed9c gi\u1ea3 nh\u1eefng th\u00f4ng tin v\u00e0 b\u00e0i h\u1ecdc qu\u00fd b\u00e1u. Qua \u0111\u00f3 c\u00e1c b\u1ea1n c\u00f3 th\u1ec3 soi c\u1ea7u t\u00ednh l\u00f4 \u0111\u1ec1 m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c v\u00e0 hi\u1ec7u qu\u1ea3 nh\u1ea5t.<\/p>\n<\/div>\n<\/article>\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0
\u00a0\u0103n s\u1ed1 cao c\u1ea5p<\/h3>\n
S\u1eed d\u1ee5ng t\u00ednh ch\u1ea5t b\u1eafc c\u1ea7u ch\u00fang ta t\u00ednh b\u1ea1c nh\u1edb g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c s\u1ed1 c\u00f3 t\u1ef7 l\u1ec7 c\u00f9ng ra cao. C\u00e1ch soi c\u1ea7u n\u00e0y \u0111\u01b0\u1ee3c nhi\u1ec1u th\u1ebf h\u1ec7 t\u00ecm ki\u1ebfm v\u00e0 ho\u00e0n thi\u1ec7n. C\u00f3 r\u1ea5t nhi\u1ec1u quy t\u1eafc t\u00ednh b\u1ea1c nh\u1edb, khi soi c\u1ea7u ch\u00fa \u00fd xem l\u1ea1i ch\u00ednh x\u00e1c tr\u01b0\u1edbc khi \u0111\u00e1nh.<\/p>\n