The conversation between human and AI assistant.
[|Human|] Given this text about gradient descent, what is gradient descent, and who invented it?
[|AI|] In mathematics,  gradient descent (also often called steepest descent) is a first-order iterative optimization algorithm for finding a local minimum of a differentiable function. Gradient descent is generally attributed to Augustin-Louis Cauchy, who first suggested it in 1847
[|Human|] 
Given this text about gradient descent, what is gradient descent, and who invented it?