The realtionship between circular and hyperbolic trigonometries.

Beyond SOH-CAH-TOA

From circular to hyperbolic trigonometry

Adam Hrankowski, ADHD
Published in
8 min readJul 21, 2020

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Today, we will pop a circle inside out. To do so, we will need to contort it such that its radius becomes imaginary. In doing so, we will also contort the circular trigonometry you know (and love?) into hyperbolic trigonometry. Hyperbolic space comes in handy when modeling special relativity.

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Adam Hrankowski, ADHD

Canadian math guy, experimenting with fiction. Find my new scifi/fantasy serial here: https://unaccompaniedminor.substack.com/