Recent content by billyd690

Hello, I need some assistance with Mathematica. I'm very new to the software, and am not very familiar with the programming language. I guess I'm a little bit lost as to where to go after defining my function. I'm not sure how to apply constraints, or really how to jump in and tackle this...

Thank you for that! I am new to using Mathematica and didn't realize it was so case sensitive and such. I knew it was something but I wasn't sure because I didn't receive any error messages. I've got it know and have actual graphs now. Thanks again.

The goal is to plot both the surface graph of the function and the tangent plane to the surface on one plot. There are two functions I believe I'm having issues with: f(x,y) = cos(x+y)exp(x^2 - y^2) @ point (0.5,-0.5) & f(x,y) = sin(exp(xy)) @ point (1,1) My code for the two are as...