> a lot of calculus relys on trig This seems like an exaggeration, at least from the point of view of calculus in the classroom, where the prevalence of trigon

> a lot of calculus relys on trig This seems like an exaggeration, at least from the point of view of calculus in the classroom, where the prevalence of trigonometric functions reflects only their convenience as examples. Did I misunderstand? Perhaps more apposite is differential equations, where trigonometric functions (or exponentials more generally) are ubiquitous.