Can a Matlab M-script be stopped by a statement in the script?

Question

A very simple, and perhaps obvious, question: How can I abort execution of a Matlab M-script using a statement within the script?

This is analogous to calling ret

Answer 1

Yes you can with the help of

return;

Return works in Matlab-scripts like it does in functions.

e.g.

    function [ point ] = PointDoubling( x,y,p,a )
    %UNTITLED2 Summary of this function goes here
    %   Detailed explanation goes here
    if y==0
        point='Not calculated';
        return;
    end
    a2=(3*(x^2))+a;
    b2=(2*y);
    i=1;
    while 1
        if mod(b2*i,p)==1
        break;
    end
        i=i+1;
    end
    s=mod(a2*i,p);
    x1=mod(((s^2)-(2*x)),p);
    y1=mod(((-y)+(s*(x-x1))),p);
    point=[x1,y1];
    end