https://www.desmos.com/calculator/h14rl3mkot
Explore math with our beautiful, free online graphing calculator. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and...
heat equationnonzerobcconstantic
https://www.tensorflow.org/versions/r2.5/api_docs/python/tf/compat/v1/count_nonzero
Computes number of nonzero elements across dimensions of a tensor. (deprecated arguments) (deprecated arguments)
tfcompatcountnonzerotensorflow