(AP) — Math enthusiasts around the world ... It helps figure out everything from the size of a massive cylinder needed in ...

For example, to write the formula for calculating the volume of a cylinder, you'd start by expanding the Greek letters dropdown to choose the pi symbol. Then, go to Math operations dropdown ...

Math enthusiasts around the world ... It helps figure out everything from the size of a massive cylinder needed in refinery equipment to the size of paper rolls used in printers.