random(RR) -- random real number

Synopsis

• Usage:

  random x

• Function: random
• Inputs:

  • x, a real number
• Optional inputs:

  • Density => ..., -- make a random module map
  • Height => ..., -- random element of a type
  • MaximalRank => ..., -- make a random module map
  • UpperTriangular => ..., -- make a random module map
• Outputs:

  • a real number, a random positive real number less than x, of the same precision

Description

i1 : random 3.14

o1 = .455635707014985

o1 : RR (of precision 53)

i2 : random 3p200

o2 = 1.77408088285392938581562179344619655578041679667542522874145

o2 : RR (of precision 200)

See also

• setRandomSeed -- set starting point for random number generator
• random(RR,RR) -- random real number