# Mathematics Calculations

**Angular Frequency** - The frequency of a steady recurring phenomenum in radians per second.
**Averaging** - In any process it is often necessary to average a number of measurements to gain any confidence in the measured value.
**Cylinder** - A right angle circular cylinder.
**Factorial** - Definition of factorial.
**ln** - Abbreviation of Natural Logarithm.
**log** - Abbreviation of Logarithm.
**Pythagoras Theorem** - The Square on the Hypotenuse is equal to the sum of the squares of the other two sides.
**Square** - A number raised to the power 2 ie 2 x 2 = 2
^{2} = 4. Also, a 2 dimensional figure with the height and width having the same lengths,and at right angles to each other. **Square Root** - The square root of a number is a number that when multiplied by itself equals the number that the square root is being taken of.