I am a little new to matlab and would like to get some help on how to write a program or a function that can calculate the energy/power of a signal depending on whether the signal is an energy or a power signal.
Here is the program the I tried:

    function [ ] = power_or_energy( s,t)
    %UNTITLED Summary of this function goes here
    %   s is the input signal
    %   t is the independent variable

    s2=s.^2;
    energy=int(s2,t,-inf,inf);

    if energy~=inf && energy~=-inf
        disp ('the signal is an energy signal with energy equal to ' );
        disp(energy);
    end

    power=limit((int(s2,t,-t/2,t/2))/t,t,inf);

    if power~=inf && power~=-inf
        disp('the signal is a power signal with power equal to ');
        disp(power);
    end


But the problem here is that when i want to check it for a function like

    t=0:0.01:10;
    s=sin(t);
    power_or_energy(s,t);

then i get the following error:
*"Undefined function 'int' for input arguments of
type 'double'."*

So how to i actually calculate the energy for such signals?

Also the above function works fine with the below input:

    syms t;
    s=sin(t);
    power_or_energy(s,t);


Please help me in writing a function that can be used to find the energy of any input signal.