Problem using the erfi function from Mupad in Matlab command Window

Hello every one, I want to use the erfi function, and since it doesn't exist in Matlab I tried to call it from Mupad. It works fine for numbers like 1, 1.3, .. however, it doesn't work for an array this is my function :

function ans=erfi(t)
f = feval(symengine,'erfi',t);
format long;
ans = double(f);

and when I put in the command window:

>> erfi(1) 
erfi (1.3)
erfi(2)

ans =

   1.650425758797543

ans =

   2.956086576851622

ans =

18.564802414575553

it works. But when I put ( and that's what I need) :

>> erfi([1;2;3])
??? Error using ==> mupadengine.mupadengine>mupadengine.feval at 144
MuPAD error: Error: argument must be of 'Type::Arithmetical' [erfi]

Error in ==> erfi at 2
f = feval(symengine,'erfi',t);

I have this as an error... I hope I explained my problem for you guys..I'm waiting for you help Thanks :)

Answer 1

[Andrei Bobrov]

correct

function out=erfi(t)
  out = arrayfun(@(i1)double(feval(symengine,'erfi',t(i1))),1:length(t));
end

EDIT

function out=erfi(t)
   out = zeros(1,numel(t));
   for i1 = 1:numel(t)
      out(i1) = double(feval(symengine,'erfi',t(i1)));
   end
end

[Mohamed Yassin OUKILA]

Thanks dude...that really helped...but can you explain what have you done to make it work please? :)

[Andrei Bobrov]

We use function 'arrayfun' , read help about 'arrayfun', more can use loops 'for...end'. see answer EDIT.