1. Computing & Technology

PHP and Math

PHP allows you to preform numerous mathematical tasks. You can do anything from simple addition to complex geometry. You can also do things like round numbers, convert bases, or find the absolute value of numbers.

More PHP Math
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Floating Point Number

Sunday May 20, 2012

A Floating Point Number is a way to represent a precise number on a computer system. The "floating point" refers to the decimal point. Other than this it is very similar to scientific notation.  Read more about floating point numbers.

Expression

Wednesday May 16, 2012

An expression is made up of operators and operands.  They preform different comparisons or calculations used to evaluate a single value.  We often use different expressions to for various reasons in PHP.  Read more.

The value of e

Saturday May 12, 2012

e is a mathematical constant, and an irrational number.  It's value is approximately equal to 2.7, and is used in several PHP functions included exp (x) which calculates e to the power of x.  Read more about e.

Comparison Operators

Monday May 7, 2012

Comparison operators are used to compare one value to another.  There are four different ways you can do this:  greater than, less than, equal to, or not equal to.  Each is represented with a different symbol.  Read more about comparison operators.

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