16 August 2022 07:56:41 AM

asa121_test():
  c++ version
  test asa121().

test01():
  trigamma() computes the trigamma function. 
  We compare the result to tabulated values.

          X                     FX                        FX2
                                (Tabulated)               (TRIGAMMA)                DIFF

                         1         1.644934066848226         1.644934065473284   1.375e-09
                       1.1         1.433299150792759         1.433299149682242   1.111e-09
                       1.2         1.267377205423779         1.267377204523234   9.005e-10
                       1.3         1.134253434996619         1.134253434263521   7.331e-10
                       1.4         1.025356590529597         1.025356589930587    5.99e-10
                       1.5        0.9348022005446793        0.9348022000534715   4.912e-10
                       1.6        0.8584318931245799        0.8584318927203769   4.042e-10
                       1.7        0.7932328301639984        0.7932328298302757   3.337e-10
                       1.8        0.7369741375017002        0.7369741372252769   2.764e-10
                       1.9        0.6879720582426356        0.6879720580129576   2.297e-10
                         2        0.6449340668482264        0.6449340654732836   1.375e-09

asa121_test():
  Normal end of execution.

16 August 2022 07:56:41 AM