Leibniz
A chain rule visualizer built out of love for one of mathematics' most elegant formulas.
“The chain rule has been my favorite piece of mathematics since high school calculus. I always knew I'd eventually build something to honor it.”
The chain rule has been my favorite piece of mathematics since I first encountered it in high school calculus. There's something genuinely beautiful about it—the way composite functions decompose, the way derivatives chain together in a clean, recursive structure. Most tools can compute it for you, but I always wanted something that let me experience it geometrically—not just read a symbolic answer, but watch the math take shape. Leibniz is that tool. I named it after Gottfried Wilhelm Leibniz, whose notation for calculus—the one we still use today—carries the same elegance I tried to bring to the design of this app. It was one of those projects I had been thinking about for years, and finally building it was deeply satisfying. For those who want to go beyond the visualization, Leibniz also includes a Learn More page—a place to explore the history of the chain rule, how it was derived, and the surprising range of fields it touches.
Geometric Visualization
See the chain rule rendered geometrically, not just symbolically—turning abstract derivatives into tangible shapes you can actually watch interact.
Learn More
A dedicated page covering the history of the chain rule, its derivation, and real-world applications across science and engineering.
Leibniz Notation
Built around the notation Leibniz himself created, honoring the mathematical tradition that makes calculus readable to this day.
Designed for Elegance
Every visual decision was made to match the elegance of the mathematics itself—because a formula this beautiful deserves a tool that looks the part.