# markovRing(...,VariableName=>...) -- symbol used for indeterminates in a ring of discrete joint probability distributions

## Synopsis

• Usage:
markovRing (d,VariableName => q)
• Inputs:
• q, or

## Description

The indeterminates in the polynomial ring made by markovRing are labeled with the letter ''p'' suggesting probability distributions. However, it is useful to be able to create a new ring where the indeterminates are labeled different (for example, they may represent marginal probabilities).

 i1 : d=(1,2); i2 : markovRing (d,VariableName => q); i3 : gens oo o3 = {q , q } 1,1 1,2 o3 : List

## Further information

• Default value: p
• Function: markovRing -- ring of joint probability distributions on several discrete random variables
• Option key: VariableName -- optional input to choose indeterminate name in markovRing