Barrel - is a solid of revolution composed of parallel circular top and bottom with a common axis and a side formed by a smooth curve symmetrical about the midplane (Wolfram MathWorld)
V - Volume of the barrel
D - Largest diameter of the barrel
d - Smallest diameter of the barrel
h - Height of the barrel
Instructions
Select the type of calculation
Fill in the blank fields with the values of the variables
Click the "Calculate >>" button to see the result
To transfer the result to one of the temporary memories of WebCalc, select the memory and the type of operation and click on the "Transfer >>" button
Click the "Print" button to open the impression page