There are many more operations available for matrices than for immutable matrices, but mutable matrices are sometimes easier to construct.
i1 : m = mutableMatrix(ZZ,3,5)
o1 = 0
o1 : MutableMatrix
|
i2 : m_(1,2) = 3
o2 = 3
|
i3 : m_(2,4) = 54
o3 = 54
|
i4 : m_(0,0) = -12
o4 = -12
|
i5 : m
o5 = | . . . . . |
| . . 336038370151054137038902537746532995761700865 . . |
| . . . . 820186819563929344586040444001256020304457874681745744276688670509446980982716005383857056798970625055085408021242300429174387262932637697223278236612230481530555037989439837488995453240924825303750390565375879233080501877450860057002194307625403426893612168293036899047651437200815663941393975092126408813012370859073327372656735487987830813396932291471728540902200755177967042967475508624305990950347404430488645623112541779892699456653064623708921810757646825714889594412114780748441260572115206146 |
o5 : MutableMatrix
|
i6 : matrix m
o6 = 0
3 5
o6 : Matrix ZZ <--- ZZ
|