random(Type) -- get a random object of a type

Function: random
Usage:

random T
Inputs:
- T, a type,
Optional inputs:
- Height => an integer, default value 10, get a random homogeneous element from a graded ring
- CoefficientRing (missing documentation) => ..., default value null,
- Density => ..., default value 1, get a random map of module
- MaximalRank => ..., default value false, get a random map of module
- UpperTriangular => ..., default value false, get a random map of module
Outputs:
- a thing, a random instance of the type T

Description

If the Height option specifies a number h and T is ZZ then the integers returned are in the range [0, h); for QQ the numerator and denominator are in the range [1, h].

i1 : random RR

o1 = .8927118418469154

o1 : RR (of precision 53)

i2 : random CC_100

o2 = .5619898392945591566756001377063+.2468606270337661566124209458785*ii

o2 : CC (of precision 100)

i3 : kk = GF 11

o3 = kk

o3 : GaloisField

i4 : tally for i to 100 list random kk

o4 = Tally{-1 => 4 }
           -2 => 11
           -3 => 8
           -4 => 10
           -5 => 15
           0 => 6
           1 => 7
           2 => 11
           3 => 8
           4 => 12
           5 => 9

o4 : Tally

i5 : random GF(2,40)

      37    35    33    31    29    27    24    22    17    16    15    12  
o5 = a   + a   + a   + a   + a   + a   + a   + a   + a   + a   + a   + a   +
     ------------------------------------------------------------------------
      5    4    2
     a  + a  + a  + a

o5 : GF 1099511627776

Ways to use this method:

random(Type) -- get a random object of a type

The source of this document is in /__w/M2/M2/macaulay2-1.26.05+ds/M2/Macaulay2/packages/Macaulay2Doc/functions/random-doc.m2:266:0.

random(Type) -- get a random object of a type

Description

See also

Ways to use this method: