mutableMatrix(Ring,ZZ,ZZ) -- make a mutable matrix filled with zeroes

Synopsis

Usage:
mutableMatrix(R,nrows,ncols)
Function: mutableMatrix
Inputs:
- R, a ring
- nrows, an integer
- ncols, an integer
Outputs:
- a mutable matrix, an nrows by ncols mutable matrix filled with zeroes from the ring R
Optional inputs:
- Dense => default value true, whether the encoding of the matrix should be dense or not: see MutableMatrix

Description

i1 : m = mutableMatrix(QQ,10,20)

o1 = 0

o1 : MutableMatrix

i2 : m_(5,5) = 11/13

     11
o2 = --
     13

o2 : QQ

i3 : m

o3 = | . . . . . .     . . . . . . . . . . . . . . |
     | . . . . . .     . . . . . . . . . . . . . . |
     | . . . . . .     . . . . . . . . . . . . . . |
     | . . . . . .     . . . . . . . . . . . . . . |
     | . . . . . .     . . . . . . . . . . . . . . |
     | . . . . . 11/13 . . . . . . . . . . . . . . |
     | . . . . . .     . . . . . . . . . . . . . . |
     | . . . . . .     . . . . . . . . . . . . . . |
     | . . . . . .     . . . . . . . . . . . . . . |
     | . . . . . .     . . . . . . . . . . . . . . |

o3 : MutableMatrix

mutableMatrix(Ring,ZZ,ZZ) -- make a mutable matrix filled with zeroes

Synopsis

Description

See also