2. (C) Program to solve algebraic and transcendental equation by Secant method

2. (C) Program to solve algebraic and transcendental equation by Secant method

	deff('y=f(x)','y=x^3-2*x-5'); x1=2,x2=3
	n=1;
	c=0;
	printf('successive iterations\tx1\tx2\tx3\tf(x3)\n')
	while n==1
	x3=(x1*f(x2)-x2*f(x1))/(f(x2)-f(x1));
	printf('\t%f\t%f\t%f\t%f\n',x1,x2,x3,f(x3));
	if f(x3)*f(x1)>0 then
	x2=x3;
	else
	x1=x3;
	end
	if abs(f(x3))<0.000001 then
	break;
	end
	c=c+1;
	end
	printf('the root of the equation after %i iteration is:%f',c,x3)