PROBELEM IN MY CODE (matlab r2011b)

P=inline('sin(4*x + 4*y)','x','y')
Q=inline('cos (4*x-4*y)','x','y')
x=linspace(-4,4,20)
y=linspace(-4,4,20)
[X,Y]=meshgrid(x,y)
p=P(X,Y)
q=Q(X,Y)
quiver(X,Y,p,q)

My error

Attempt to execute SCRIPT inlineeval as a function: C:\Program Files\MATLAB\R2011b\toolbox\matlab\funfun\inlineeval.m

Error in inline/subsref (line 24) INLINE_OUT_ = inlineeval(INLINE_INPUTS_, INLINE_OBJ_.inputExpr, INLINE_OBJ_.expr);

Error in Untitled5 (line 6) p=P(X,Y);

[Walter Roberson]

http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer

What is the difference between what you expect and what you get? Does the code produce an error message? Which message and which line?

[justin Taylor]

Ok i fix it !

Answer 1

[Walter Roberson]

My guess would be that you have a corrupted installation.

I never use inline functions myself; I prefer to use anonymous functions, or just to make direct calls as in your previous question

[justin Taylor]

I know! Because the installation error. I was fixed it, thanks so much