// output of ./demo/fft/square-wave-basis-demo.cc:
// Description:
//% Show basis of the square wave transform or its inverse.

arg 1: 5 == ldn  [Using 2**ldn elements]  default=5
arg 2: 0 == qq  [0 ==> basis of SWT, 1 ==> basis of inverse SWT]  default=0
arg 3: 1 == nq  [Whether to use normalization]  default=1
   0: [ +                             + +             + +     + + + + + ]  1
   1: [ - +                             - +             - +     - + - + ]  1
   2: [   - +                             - +             - +   - - + + ]  1
   3: [     - +                             - +             - + + - - + ]  1
   4: [       - +                             - +       -     - + + + + ]  1
   5: [         - +                             - +     + -     - + - + ]  1
   6: [           - +                             - +     + -   - - + + ]  1
   7: [             - +                             - +     + - + - - + ]  1
   8: [               - +               -             - +     + + + + + ]  1
   9: [                 - +             + -             - +     - + - + ]  1
  10: [                   - +             + -             - +   - - + + ]  1
  11: [                     - +             + -             - + + - - + ]  1
  12: [                       - +             + -       -     - + + + + ]  1
  13: [                         - +             + -     + -     - + - + ]  1
  14: [                           - +             + -     + -   - - + + ]  1
  15: [                             - +             + -     + - + - - + ]  1
  16: [ -                             - +             + +     + + + + + ]  1
  17: [ + -                             - +             - +     - + - + ]  1
  18: [   + -                             - +             - +   - - + + ]  1
  19: [     + -                             - +             - + + - - + ]  1
  20: [       + -                             - +       -     - + + + + ]  1
  21: [         + -                             - +     + -     - + - + ]  1
  22: [           + -                             - +     + -   - - + + ]  1
  23: [             + -                             - +     + - + - - + ]  1
  24: [               + -               -             - +     + + + + + ]  1
  25: [                 + -             + -             - +     - + - + ]  1
  26: [                   + -             + -             - +   - - + + ]  1
  27: [                     + -             + -             - + + - - + ]  1
  28: [                       + -             + -       -     - + + + + ]  1
  29: [                         + -             + -     + -     - + - + ]  1
  30: [                           + -             + -     + -   - - + + ]  1
  31: [                             + -             + -     + - + - - + ]  1