Fri May 16 20:52:35 2025

i4lib_test():
  python version: 3.10.12
  numpy version:  1.26.4
  Test i4lib().

gamma_log_values():
  gamma_log_values() stores values of
  the logarithm of the Gamma function.

      X            gamma_log(X)

      0.200000        1.5240638224307841
      0.400000        0.7966778177017837
      0.600000        0.3982338580692348
      0.800000        0.1520596783998375
      1.000000        0.0000000000000000
      1.100000       -0.0498724412598397
      1.200000       -0.0853740900033158
      1.300000       -0.1081748095078604
      1.400000       -0.1196129141723712
      1.500000       -0.1207822376352452
      1.600000       -0.1125917656967557
      1.700000       -0.0958076974070659
      1.800000       -0.0710838729143722
      1.900000       -0.0389842759230833
      2.000000        0.0000000000000000
      3.000000        0.6931471805599453
      4.000000        1.7917594692280550
     10.000000       12.8018274800814691
     20.000000       39.3398841871994946
     30.000000       71.2570389671680147

i4_abs_test():
  i4_abs() computes the absolute value of an I4.

         A         B=i4_abs(A)

        75        75
       -81        81
       -56        56
       -97        97
         0         0
        -3         3
        19        19
        39        39
       -75        75
        35        35

i4_and_test():
  i4_and() returns the AND of two I4's.

         I         J    i4_and       I&J

        12        32         0         0
        46        12        12        12
        14         3         2         2
        88        48        16        16
       100        33        32        32
         4         5         4         4
         3        66         2         2
        13        32         0         0
        56        43        40        40
        81        11         1         1

i4_bclr_test():
  i4_bclr() sets a given bit to 0.

  Working on I4 = 101

       Pos     i4_bclr(I4,Pos)

         0           100
         1           101
         2            97
         3           101
         4           101
         5            69
         6            37
         7           101
         8           101
         9           101
        10           101
        11           101
        12           101
        13           101
        14           101
        15           101
        16           101
        17           101
        18           101
        19           101
        20           101
        21           101
        22           101
        23           101
        24           101
        25           101
        26           101
        27           101
        28           101
        29           101
        30           101
        31           101

  Working on I4 = -31

       Pos     i4_bclr(I4,Pos)

         0           -32
         1           -31
         2           -31
         3           -31
         4           -31
         5           -63
         6           -95
         7          -159
         8          -287
         9          -543
        10         -1055
        11         -2079
        12         -4127
        13         -8223
        14        -16415
        15        -32799
        16        -65567
        17       -131103
        18       -262175
        19       -524319
        20      -1048607
        21      -2097183
        22      -4194335
        23      -8388639
        24     -16777247
        25     -33554463
        26     -67108895
        27    -134217759
        28    -268435487
        29    -536870943
        30   -1073741855
        31    2147483617

i4_bit_hi1_test():
  i4_bit_hi1 returns the location of the high 1 bit.

       I  i4_bit_hi1(I)

        14         4
        56         6
        32         6
        15         4
        36         6
         5         3
         8         4
         7         3
        52         6
        14         4

i4_bit_lo0_test():
  i4_bit_lo0() returns the location of the low 0 bit.

       I  i4_bit_lo0(I)

        29         2
        85         2
        41         2
        88         1
        32         1
        74         1
        76         1
         1         2
         0         1
        87         4

i4_bit_lo1_test():
  i4_bit_lo1() returns the location of the low 1 bit.

       I  i4_bit_lo1(I)

         3         1
        88         4
         0