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# ChangeMatrix -- an optional argument

## Description

A symbol used as the name of an optional argument.

## Functions with optional argument named ChangeMatrix:

- forceGB(...,ChangeMatrix=>...) -- specify the change of basis matrix from a Gröbner basis to the generators of a module
- `gb(...,ChangeMatrix=>...)` -- see gb -- compute a Gröbner basis
- `markedGB(...,ChangeMatrix=>...)` -- see markedGB(Matrix,Matrix) -- make a marked Gröbner basis
- `smithNormalForm(...,ChangeMatrix=>...)` -- see smithNormalForm(Matrix) -- smith normal form for a matrix over a PID

## For the programmer

The object ChangeMatrix is a symbol.

The source of this document is in /build/macaulay2-88fgJW/macaulay2-1.25.11+ds/M2/Macaulay2/packages/Macaulay2Doc/options.m2:28:0.