text: regula falsi method programe in matlab? regula falsi̇ method function [c,err,yc]=regula(f,a,b,delta,epsilon,max1)  %input - f is the function input as a string 'f' %        - a and b are the left and right endpoints %        - delta is the tolerance for the zero %        - epsilon is the tolerance for the value of f at the zero %        - max1 is the maximum number of iterations %output - c is the zero %         - yc=f(c) %         - err is the error estimate for c  ya=feval(f,a); yb=feval(f,b); if ya*yb>0     disp('note: f(a)*f(b) >0'),     break, end for k=1:max1     dx=yb*(b-a)/(yb-ya);     c=b-dx;     ac=c-a;     yc=feval(f,c);     if yc==0,break;     elseif yb*yc>0         b=c;         yb=yc;     else         a=c;         ya=yc;     end     dx=min(abs(dx),ac);     if abs(dx)<delta,break,end     if abs(yc)<epsilon, break,end end  c; err=abs(b-a)/2; yc=feval(f,c);