Build out functional programming examples

[pcoet]

Create sub-issues for the following:

• math
  • arithmetic (see https://en.wikipedia.org/wiki/Arithmetic)
    • Operations
      • subtract
      • multiply
      • divide
      • exp
      • log
• geometry (see https://www.khanacademy.org/math/geometry-home https://en.wikipedia.org/wiki/Geometry https://github.com/HarryStevens/geometric)
  • Shapes (see https://www.khanacademy.org/math/geometry-home/geometry-shapes https://en.wikipedia.org/wiki/Shape)
  • Transforms (see https://en.m.wikipedia.org/wiki/Transformation_(function) https://www.khanacademy.org/math/geometry-home/transformations)
• arrowx (see: https://arrow-kt.io/ https://www.baeldung.com/kotlin/arrow)
• io
  • FileIO.kt (see https://www.baeldung.com/kotlin/read-file https://www.baeldung.com/kotlin/write-file)
• sicp (see https://sourceacademy.org/sicpjs/index)
• strings