Upside Down Triangle Symbol Math <SAFE | 2024>

"Why do we study the gradient, Master?" his youngest apprentice, Kael, had asked that morning.

The ink on the parchment was older than the empire, but the symbol at its center looked like a blade pointed directly at the floor. Upside Down Triangle Symbol Math

But to Master Elian, it was the "Del"—the symbol of the Descent. "Why do we study the gradient, Master