random(RR) -- random real number

Synopsis

• Function: random

• Usage:

  random x

• Inputs:
  • x, a real number
• Optional inputs:
  • Density => ..., default value 1, make a random module map
  • Height => ..., default value 10, random element of a type
  • MaximalRank => ..., default value false, make a random module map
  • UpperTriangular => ..., default value false, 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 = 2.80311518339931

o1 : RR (of precision 53)

i2 : random 3p200

o2 = 2.95876483694286789561283645053654162603476306537132244496818

o2 : RR (of precision 200)

See also

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