> I've yet to run into a situation where I need calculus Actually, gradient descent and Lagrange multipliers come up quite a bit in machine learning. Of cours

> I've yet to run into a situation where I need calculus Actually, gradient descent and Lagrange multipliers come up quite a bit in machine learning. Of course, you can just apply them without understanding them just like you can apply the graphics formulas for rotational motion without understanding them, but when something does go wrong, it sure helps to understand the principles behind them.