Matlab中单位阶跃函数或增量函数的积分

Question

I want to use int or integral function of matlab to calculate the integral of the delta function, I can't use int function because of the input, I give it is not expression. also, integral function returns a value which it isn't something below picture is the function which I want to produce it must be with delta function

this is my code that return ma an error:

t=-5:0.01:5;
ydelta=u(t+1)-u(t);
h=int(u(t+1)-u(t));
plot(t,h)

this is u function:

function y=u(t)
y=(t>=0);
end

and this is an error : Undefined function 'int' for input arguments of type 'double'. but this does not matter because the problem is the input of int function which must be expression.

how can I fix this problem?

Answer 1

For integration, you have to use the integral function. For more info: https://it.mathworks.com/help/matlab/ref/integral.html