Integration of the zero function handle ie f(x)=@(x) 0
4 views (last 30 days)
Show older comments
Drew Mitchell
on 10 May 2016
Commented: Drew Mitchell
on 11 May 2016
I have a function that requires the integration of many functions and sometime that function is zero but I don't really know when that will be.... Unfortunately, integral(@(x)0,0,1) returns the following error; Output of the function must be the same size as the input. If FUN is an array-valued integrand, set the 'ArrayValued' option to true. How do I get around this? Any help would be great!!
Thanks
Drew
0 Comments
Accepted Answer
Walter Roberson
on 10 May 2016
integral(@(x) 0 * x, 0, 1)
or
integral(@(x) zeros(size(x)), 0, 1)
3 Comments
Walter Roberson
on 10 May 2016
I seem to be having difficulty getting that automatically generated. matlabFunction does seem to reduce it down to a single 0.0
Here is a test you can use:
F = matlabFunction(YourExpression);
syms zzzzzz
Fzzzzz = F(zzzzzz);
if isempty(symvar(Fzzzzz))
F = @(x) Fzzzzzz * ones(size(x));
end
This should work for constants other than 0 as well.
More Answers (0)
See Also
Categories
Find more on Calculus in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!