Great Answers to
Questions About Everything

How Do I Simplify Expressions with Square Roots?

Can I Simplify an Expression into Form Which Uses My Own Definitions?

Shaping/simplifying Equations in a Certain Way

Why Does Simplify[b-a] Give -A+b & Not B-A?

Common Subexpression from Two Expressions

Why Does Simplify Ignore an Assumption?

Why Doesn't FullSimplify Drop the Re Function from an Expression Known to Be Real?

Why Doesn't Mathematica Simplify a Square Root of an Expression That Equals a Square of a Positive Real?