Mathematical Methods · anti-differentiation · manipulative
Top: an antiderivative F. Bottom: the integrand f. Scrub x — the tangent slope of F becomes the height of f.
y = F(x) · antiderivative
y = f(x) · integrand = F′(x)
Drag on the top graph to move x · F′(x) should match f(x)
Pair F → f
Working