Made-Up Trig Functions: Frankensine
A stitched-together monster of a piecewise trig graph.
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Free for classrooms, worksheets, slides and other non-commercial use under CC BY-NC 4.0, with credit to Ben Orlin.
Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2015-01-01-made-up-trig-functions--frankensine/ (CC BY-NC 4.0)Transcript
"frankensine(θ) = an unholy combination of trig functions stitched together into a horrifying whole" [a stitched-together graph with neck bolts]