I'm having trouble graphing using Matlab, and was hoping someone could help. I just want to hand the program a function like $z=x^2-3xy+2$, or whatever, and have Matlab generate a 3D graph. From the tutorials I've seen online, it seems like this is difficult. Can I not just hand the program that equation and the domain that I want, and have it generate a graph? What code will generate that graph? Thanks!
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As an example, lets plot the function in the interval $x=[-2;2], y=[-2;2]$. As mentioned in the comments, this can be achieved in Matlab by the code
It can also be done in Maple by the following code
which is probably more intuitive. At last, one can use Wolfram Alpha.