Need help with this integral ? what is opstruct in integralcalc?

fun=@(t)(t.*N);

q= integral(fun,0,500);

fun_2=@(t)(1.*N);

s= integral(fun_2,0,500);

tau= q./s;

plot(tau,f,'linewidth', 1.5)

error

Error in integral (line 88)

Q = integralCalc(fun,a,b,opstruct);

Error in Lifetimeof_plasmon (line 66)

s= integral(fun_2,0,500);

Answer 1

[David Goodmanson]

Hello HA

I assume N is defined further on up since Matlab was not complaining about that. Try

fun_2=@(t)(ones(size(t))*N);

and see what happens