Procedure GMP::Column::Delete(GMP, column)

# GMP::Column::Delete¶

The procedure GMP::Column::Delete marks a column in the matrix of a generated mathematical program as deleted.

GMP::Column::Delete(
GMP,            ! (input) a generated mathematical program
column          ! (input) a scalar reference or column number
)


## Arguments¶

GMP

An element in AllGeneratedMathematicalPrograms.

column

A scalar reference to an existing column in the matrix or the number of that column in the range $$\{ 0 .. n-1 \}$$ where $$n$$ is the number of columns in the matrix.

## Return Value¶

The procedure returns 1 on success, or 0 otherwise.

Note

• Use GMP::Column::DeleteMulti if many columns corresponding to some variable have to be deleted, because that will be more efficient.

• The column will not be printed in the constraint listing, nor be visible in the Math Program Inspector and it will be removed from any solver maintained copies.

• Use GMP::Column::Add to undo this action.