Question

怎样在matlab中绘制三维曲线:z=x^2+6xy+y^2+6x+2y-1,-10<x<10,-10<y<10

Answer 1

clear;clc

x=-10:0.5:10;

y=-10:0.5:10;

[X,Y]=meshgrid(x,y);

Z=X.^2+6*X.*Y+Y.^2+6*X+2*Y-1;

mesh(X,Y,Z)