How to calculate integral if Heaviside sign is under integral? What does that Heaviside sign change? For example what does happen if I substitute Heaviside sign with plain number 1?
How to calculate integral if Heaviside sign is under integral? What does that Heaviside sign change? For example what does happen if I substitute Heaviside sign with plain number 1?
Actually, it helps to restrain the limits of integration.
We know that the Heaviside function is 1 iff its argument is positive.
Hence :
So find the new boundaries of x and y by "solving"
That is