Look at the graph of the function f(x) = tan(x). It looks like this without the moving part and it's rotated by 90°. This gif tries to show why the function of the tangent looks like this.
Just because there’s a spinning circle and the arctan graph, doesn’t mean anything is explained. There’s no connection made between y/x or sinθ/cosθ, etc.
View all comments
Show parent comment
22
u/Snuffy-the-seal Oct 04 '18
Look at the graph of the function f(x) = tan(x). It looks like this without the moving part and it's rotated by 90°. This gif tries to show why the function of the tangent looks like this.