RAN: Random Number Generation

Generate Pseudorandom Numbers or an Array of such Numbers. Set a range of sucht numbers. Plant a seed.

• generate_pseudorandom_numbers
  or an array of such numbers from x:
  • result = RAN( x )
  result is uniformly distributed in 0 ≤ result ≤ x
• change
  range_of_random_numbers
  to x -a ≤ result ≤ x + a :
  • result = RAN( x, a )
• to set a
  random_number_seed
  use:
  • result = RAN( x, a, seed)
  • seed = 0 to initialize seed randomly from current date and time
  • 0 < seed < 2^31 initialize to seed
• an
  array_of_random_numbers
  is generated by
  • array = RAN(x [, a ])
  e.g:
  • array = RAN( -100, 1 )
  • -99.4434993014 -100.9606699555 -100.6602726956 -99.0105133638
  • -99.4926150282 -100.5640524723 -99.6814148510 -99.9219632113
  • -100.0398732603 -99.3215471214 -100.9491595894 -99.0212341071
  Note. x and a can be functions of the array index $, e.g. for oscillating sequences