random(Module,Module) -- make a random module map

Synopsis

• Usage:

  f = random(F,G)

• Function: random
• Inputs:

  • F, a module, a free module
  • G, a module, a free module
• Outputs:

  • f, a matrix, a random, graded, degree 0 map, from G to F
• Optional inputs:

  • MaximalRank => ...,

Description

i1 : R = ZZ/101[x,y];

i2 : random(R^{1,2,3},R^{1,2,3})

o2 = {-1} | -22             0       0  |
     {-2} | 38x-37y         -2      0  |
     {-3} | -39x2+41xy-16y2 43x+49y 35 |

             3       3
o2 : Matrix R  <--- R

See also

• setRandomSeed -- set starting point for random number generator