Big thanks to @ianfowler9340 for this wonderful way to come up with the formula for the curvature of y=f(x), which doesn't require vector calculus. Check out the vector calculus way for the curvature of r(t)=x(t)i+:y(t)j What is curvature? ----------------------------- Support this channel and get my calculus notes on Patreon: 👉 Get the coolest math shirts from my Amazon store 👉 ----------------------------- #calculus #bprpcalculus #apcalculus #tutorial #math