Having problems with functions

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Ian Phillips 2012-12-11

I've built a function, which I'm giving three values x, y and a. however when I run it I get the following error:

??? Reference to a cleared variable a.
Error in ==> parallel_inverse at 68
    a = a * pi/180;

This is my function start:

function parallel_inverse(x, y, a)

Does anyone know why I'm getting this error?

Matt J 2012-12-11

编辑：Matt J 2012-12-11

Well, the error message is saying that you cleared the variable "a" somewhere prior to where you try to use it in the line

a = a* pi/180

If you don't want to show your code, then you'll have to go hunting for the clear statement yourself.

Ian Phillips 2012-12-11

Thanks. I found the problem. first two lines in the function are:

clear;
clc;

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