Mathematical Functions, Constants

• Just as in JavaScript, we have a Math object that performs complex functions.
• Math.sqrt(4); Returns the square root of the value provided.  Would return 2 in this case.
• Math.pow(3, 2); Returns the first argument to the power of the second.  9 in this case.
• And the trig functions:
• Math.sin(), Math.cos(), Math.tan(), Math.atan(), Math.atan2()
• Exponent and log:
• Math.exp(), Math.log()
• And some constants:
• Math.PI : a close approximation to pi (3.14159....)
• Math.E : a close approximation to e.

• Converting to a type with more memory room is easy.  But, converting to a type with less room often loses accuracy.
• When performing a mathematical computation, both operands are converted to a common, usually larger, type.

Created by:  Brandan Jones January 4, 2002