这是一个关于D3 API 的测试网页 Randomize Initial Conjugate Gradient Nelder-Mead Gradient Descent Gradient Descent w/ Line Search Conjugate Gradient 20 Cities 5 Cities 10 Cities 15 Cities 20 Cities 25 Cities 500ms / Iteration 500ms / Iteration 100ms / Iteration 50ms / Iteration 25ms / Iteration Learning Rate = 0.002