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13-May-2025 19:21:08

vpa_test():
  MATLAB/Octave version 9.11.0.2358333 (R2021b) Update 7.
  vpa() is a variable precision arithmetic facility.

agm_pi_test()
  agm_pi() computes the value of pi using the 
  arithmetic-geometric-mean approach.

  Request PI to 10, 20, 40, 80 digits.

  Digits   PI: