# Simplifier-entering formulas

From Algebra.Com's Help

Revision as of 12:12, 8 July 2005 by 64.94.157.1 (talk)

## Entering formulas for simplifier

The formulas that my simplifiers simplifies, are entered the same way as in my formula plotting system. However, to simplify a formula, it needs to be understood much deeper than when we just want to draw it as a picture. Therefore, there are some important **requirements**.

- DO use multiplication sign '*' (the STAR) symbol. For the simplifier, xy is NOT the same as x*y or yx. Simplifier thinks that xy is a separate variable.
**Good example:**x*y-y*(x+2).**Bad example**: xy-y(x+2). - DO use '*' when multiplying a variable by an expression in parentheses: x*(x+2). Otherwise, my simplifier will think that you are trying to use a function and will become confused.