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¼öÄ¡ÀûºÐ, ½ÉÇÁ½¼ ¹ýÄ¢(Simpson¡Çs rule), »ïÂ÷½Ä ÀÌ¿ë

ÀÛ¼ºÀÚ Uploader : mangsteen ÀÛ¼ºÀÏ Upload Date: 2019-05-11º¯°æÀÏ Update Date: 2019-05-11Á¶È¸¼ö View : 2307

ÇÔ¼ö f(x)¸¦ ±¸°£ a, b ¿¡ ´ëÇؼ­ ÀûºÐÇÒ ¶§, »ïÂ÷½ÄÀ¸·Î ´ëüÇÏ¿© ±Ù»ç°ªÀ» ±¸ÇÏ´Â ¹æ¹ý

¡òf(x)¡Ö¡òP(x) = ((b-a)/8)*(f(a)+3*f((2a+b)/3)+3*f((a+2b)/3)+f(b))

ÀûºÐ ±¸°£ a, b ¸¦ 3 µîºÐÇÏ¿© a ¿¡¼­ b ±îÁö 4 Á¡À» °¢°¢ x0, x1, x2, x3 ¶ó Çϸé,

x0 = a, x1 = (2a+b)/3, x2 = (a+2b)/3, x3 = b °¡ µÈ´Ù.

fx0 = f(a), fx1 = f((2a+b)/3), fx2 = f((a+2b)/3), fx3 = f(b) ¶ó Çϸé, °á°ú´Â ´ÙÀ½°ú °°´Ù.

Res = ((b-a)/8)*(fx0+3*fx1+3*fx2+fx3)

3 µîºÐÇÑ °£°ÝÀ» h ¶ó Çϸé, ¾Æ·¡¿Í °°°í, 3/8 °ø½ÄÀ̶ó°í ĪÇÑ´Ù.

Res = (3*h/8)*(fx0+3*fx1+3*fx2+fx3)


*** Âü°í¹®Çå[References] ***

https://en.wikipedia.org/wiki/Simpson%27s_rule
Res = ((b-a)/8)*(fx0+3*fx1+3*fx2+fx3)
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