I am getting an error

I am getting an error while executing the below for Matlab

Execution of script gradient as function is not supported...can I have urgent help here please

f=@(x) exp(x)-x.^2+5*x;
x=1:0.1:10;
y=f(x);
d=gradient(y,0.1);
%plot(x,d,'o')

Answer 1

[Chunru]

f=@(x) exp(x)-x.^2+5*x;
x=1:0.1:10;
y=f(x);
d=gradient(y, x);
plot(x,d,'o')

Answer 2

[Walter Roberson]

which gradient

The output will likely show you the name of a file that is not provided by Mathworks. You need to rename or delete that file.

If it does happen to show a file provided by Mathworks such as toolbox/matlab/datafun/gradient.m then you would have a corrupt version of the file and would need to be reinstalled.

[Ramesh Rajagopal]

Thank you...the issue was with the filename being gradient....I have renamed it and it works....thnks for the help