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In the Newton Raphson Method, the derivative "f'(a)" is not easy every time to calculate. Mostly for the experimental functions, so we take two initial guesses and calculate the derivative by using these points. in Secant Method we use {f(b)-f(a)}/(b-a) in place of the f'(a) in Newton Raphson method.
In the Newton Raphson Method, the derivative "f'(a)" is not easy every time to calculate. Mostly for the experimental functions, so we take two initial guesses and calculate the derivative by using these points. in Secant Method we use {f(b)-f(a)}/(b-a) in place of the f'(a) in Newton Raphson method.
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