Our user asked to make a cylinder segment volume calculator. I imagine the segment like this - see picture
Accordingly, we set four parameters and obtain the volume segment. If the inner radius is set 0 and the number of degrees is 360, we will calculate the volume of cylinder and so on.
The formula is simple - the area difference of the segments obtained by the first and the second radius, multiplied by the height.
Save the calculation to reuse next time or share with friends.