Integration limit is an array

syms x
tau=35*10^-15;
f=tau.*exp(-x.^(2));
t=linspace(-300*10^-15,300*10^-15,500);
fun=matlabFunction(f,'Vars',x);
z=integral(fun,-Inf,(t/tau),'ArrayValued',true)

Error using integral
Limits of integration must be double or single scalars.

Answer 1

[VBBV]

syms x
tau=35*10^-15;
f=tau.*exp(-x.^(2));
t=linspace(-300*10^-15,300*10^-15,500);
fun=matlabFunction(f,'Vars',x)

fun = function_handle with value:
    @(x)exp(-x.^2).*3.5e-14

for k = 1:length(t)
z(k)=integral(fun,-Inf,(t(k)/tau),'ArrayValued',true);
end
z

z = 1×500

1.0e-13 * 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

plot(t,z)

[VBBV]

As mentioned in error, use scalar inputs to function integral