Integrals -zambak- _best_
Every differentiation rule yields an integration rule. For example:
( \int 2x e^x^2 , dx ) Let ( u = x^2 ), ( du = 2x dx ) ⇒ ( \int e^u du = e^u + C = e^x^2 + C ) Integrals -Zambak-
Zambak doesn't stop at abstract calculation. Their "Application" chapters are filled with architectural and engineering examples, often referencing historical Islamic architecture (aligning with their publisher background). Every differentiation rule yields an integration rule