I need to plot B = (cos(X))^m; for m=1-20 and X at viewing angles 10degrees, 20 degrees, and 45 degrees. I am new to matlab and can't get the code right.

>> B = (cos(X))^m;
Undefined function or variable 'X'.

>> X = [10 20 45];
>> m = [1:20];
>> B = (cos(X))^m;
Error using  ^ 
Inputs must be a scalar and a square matrix.
To compute elementwise POWER, use POWER (.^) instead.

>> B = (cos(X)).^m;
Error using  .^ 
Matrix dimensions must agree.

>> X = [10, 20, 45];
>> B = (cos(X)).^m;
Error using  .^ 
Matrix dimensions must agree.

Answer 1

[Mischa Kim]

You mean

 X = [10 20 45]'; 
 m = [1:20]; 
 B =  bsxfun(@power, cosd(X), m)

[dakotajoe]

Now how do I plot that?

[Mischa Kim]

 plot(B')