27 March 2024 08:31:43 AM

zero_brent_test():
  C++ version
  zero_brent() seeks a root of a function F(X)
  in an interval [A,B].

  f_01(x) = sin ( x ) - x / 2

           A                 Z             B
         F(A)              F(Z)          F(B)
               1         1.89549               2
        0.341471               0      -0.0907026
  Number of calls to F = 8

  f_02(x) = 2 * x - exp ( - x )

           A                 Z             B
         F(A)              F(Z)          F(B)
               0        0.351734               1
              -1               0         1.63212
  Number of calls to F = 7

  f_03(x) = x * exp ( - x )

           A                 Z             B
         F(A)              F(Z)          F(B)
              -1     2.67518e-24             0.5
        -2.71828     2.67518e-24        0.303265
  Number of calls to F = 12

  f_04(x) = exp ( x ) - 1 / ( 100 * x * x )

           A                 Z             B
         F(A)              F(Z)          F(B)
          0.0001       0.0953446              20
         -999999    -2.22045e-16     4.85165e+08
  Number of calls to F = 16

  f_05(x) = (x+3) * (x-1) * (x-1)

           A                 Z             B
         F(A)              F(Z)          F(B)
              -5              -3               2
             -72               0               5
  Number of calls to F = 14

zero_brent_test():
  Normal end of execution.

27 March 2024 08:31:43 AM