New to MATLAB here, can anyone tell me why when I try to run this it shows an error saying "Not Enough Input arguments"?

I_desired=1.15

[t1]=current(I_desired)
function [t1]=current(I_desired)
I=@(t) (I_desired)-(9*exp.^(-t).*sin(2*pi.*t))
t1=fzero(I,0.5)
end

Answer 1

[Florian Floh]

I_desired=1.15;

t1=current(I_desired)

function [t1]=current(I_desired)

    % it is exp(), NOT exp.^()
    I=@(t) (I_desired)-(9*exp(-t).*sin(2*pi.*t));
    t1=fzero(I,0.5)
end

If I use exp() instead of exp.^() I get an output. I hope this helps ;)