Generating Random Numbers in Visual Basic

[Himansh]

I recently watched this video
<!-- m --><a class="postlink" href="http://www.youtube.com/watch?feature=player_detailpage&v=G1reHzr3DCI">http://www.youtube.com/watch?feature=pl ... 1reHzr3DCI</a><!-- m -->

And the video shows this frmula for generating random number
(highnumber-lownumber+1) *Rnd() + lownumber

Can anybody tell me how does this formula works
I.e the logic behind this formula

Thanks in Advance!!!

[brandonio21]

Well, it has to do with the formula for finding the average value of a function, where the average value is
(1 / b - a) * (a to b)(Integral(ƒ(x)). Since the Rnd() Function only generates numbers between 0 and 1, we need to multiply and add values in order to enter the range we want.