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Sunday, January 21, 2018

SECANT MEHTOD IN C PROGRAMMING

//secant
#include<stdio.h>
#include<math.h>
#include<stdlib.h>
float f(float x)
{
    return(pow(x,3)-2*x-5);
}

void main()
{
    float x,a,b;
    printf("Enter two initial guesses a & b : ");
    scanf("%f%f",&a,&b);
    do
    {
        if(f(a)==f(b))
        {
            printf("Denominator is zero");
            exit(0);
        }
        x=(a*f(b)-b*f(a))/(f(b)-f(a));
        a=b;
        b=x;

    }while(fabs(f(x))>0.00005);
    printf("Solution = %f, f(x)= %f",x,f(x));
}

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