Make: Trigonometry

Chapter 6. Trig Identities to Logarithms

3D printed models used in this chapter

See Chapter 2 for directions on where and how to download these models:

• cylindergraph.scad
  • This model creates a 3D unit circle and sinusoid graph.
• rootfinder.scad
  • This model creates logarithmic scales to simulate a simple slide rule

Optional materials

You may find these items useful.

• Logarithmic-linear graph paper (purchase, or print on paper from online templates)
• Slide rule (we will 3D print one or print a simple one on paper)
• Paper and paper printer

Trigonometry is often taught as part of high school algebra (typically called “Algebra II”) but the tie between the two can be obscure. Some of the relationships we saw to this point in the book were known ...