Calculus is often seen as a subject full of complex symbols and formulas, but at its core, it’s about understanding change. While derivatives help us measure how things change, antiderivatives do the reverse—they help us reconstruct the original function from its rate of change. In other words, if differentiation is breaking things down, antidifferentiation is putting them back together. What is an Antiderivative? An antiderivative of a function \(f(x)\) is another function \(F(x)\) such that when we take its derivative, we get back \(f(x)\).