HUM SCI LE levent celik How to Actually Prove a Trig Identity (Without Guessing) When a student opens to the identity-proofs section of a precalc book, sees something like “sin x over one minus cos x, plus one minus cos…
HUM SCI LE levent celik Finding the Zeros of a Quadratic, Without the Headache Hi everyone, Students here. Every semester I get the same question after the first algebra lecture: “How do I actually find the zeros of a…
HUM SCI LIF LE levent celik Open-Sourcing the Python Engine Behind Equation Solver Over the past months, I’ve been building Equation Solver , a multilingual educational math platform focused on step-by-step explanations…
