16KiB, 222x260, egg man thinking.jpg View SameGoogleiqdbSauceNAO Anonymous Wed 20 Jan 02:33:52 2021 No.12603208 ViewReplyOriginalReport Quoted By: >>12603224 >>12603494 >>12603785 >>12604445 Say you have a function f(tx, ty). How can you differentiate this with respect to t?