# Posynomial

### From Glossary

A positive sum of monomials: where Each monomial is the product,

and is called the *exponent matrix*. This is the fundamental function in geometric programming.

- Example: is a posynomial with 2 monomial terms and 3 variables. The exponent matrix is 2 by 3, showing the exponent in each monomial (row) of each variable (column):