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 = | . . . . . |
| . . 336502515300183334210534549892123252662206465 . . |
| . . . . 820186819563929708822156309160998846429906827373507606756048782749110248917223377086118100123193527746460974055347712028522501362541613237682899737959391545564076232448927316940346845060301195209537504522927142000231891623666604646414740465394379461062792208430414835306556242171233319421571784438592162755556816175532321309022112315488399953165242535358337761877470248263996911021102623180987418546090835932287732510445211406862329058132732661166002408609772112052229391576539709316185162250996154370 |
o5 : MutableMatrix
|
i6 : matrix m
o6 = 0
3 5
o6 : Matrix ZZ <--- ZZ
|