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Calculating x3 values ​​in numerical approximation, secant method

ÀÛ¼ºÀÚ Uploader : orion ÀÛ¼ºÀÏ Upload Date: 2019-11-20º¯°æÀÏ Update Date: 2019-12-30Á¶È¸¼ö View : 321

In the secant method, xn is obtained as

xn = ((xn-1)*f(xn-1) - (xn-2)*f(xn-2)) / (f(xn-1)-f(xn-2))

where n-1 and n-2 are subscripts in xn-1 and xn-2.

If f(x1) = fx1 and f(x2) = fx2, then,

x3 = (x2*fx1 - x1*fx2) / (fx1-fx2)


*** Âü°í¹®Çå[References] ***

https://en.wikipedia.org/wiki/Secant_method
x3 = (x2*fx1 - x1*fx2) / (fx1-fx2)
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