Anyone here familiar with MATLAB??

If so, I'm trying to learn it and I'm having a bit of trouble. Tell me whether anything is wrong with the following function:

And then to execute and calculate the sine of 30 degrees, I type in the command menu the following:

I'm getting the following error everytime I try to execute:

What am I doing wrong?

If so, I'm trying to learn it and I'm having a bit of trouble. Tell me whether anything is wrong with the following function:

function h=sindeg(x)

h=sin(pi/180*x);

h=sin(pi/180*x);

sindeg(30)

I'm getting the following error everytime I try to execute:

??? Undefined function or variable 'sindeg'.

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