5.2 Plot the surface described by 2D function

Problem: Plot the function

\[ f(x,y)=x^{2}-2xy+3y+2 \]

Mathematica Remove["Global`*"]; f[x_,y_]:=x^2-2x y+3y+2; Plot3D[f[x,y],{x,-4,4},{y,-3,3}, PlotLabel->"Plot of x^2-2x y+3y+2", ImageSize->300]

 

Matlab clear all; close all; x = -4:.3:4; y = -3:.3:3; [X,Y] = meshgrid(x,y); Z = X.^2 - 2*(X.*Y) + 3*Y + 2; surf(X,Y,Z) title('plot of z=x^2-2(x y)+3y+2'); set(gcf,'Position',[10,10,420,420]);