Error while plotting the surface

x = 0:0.1:100;

y = 0:0.1:100;

z= 6*(x.*x)+ y + (3*x) + 5*(x.*y)+10;

surf(x,y,z);

my error:Z must be a matrix, not a scalar or vector.

Answer 1

[Mathieu NOE]

hello

you need to create a grid from the 1D array x and y . This is done via meshgrid

code :

clc
clearvars

x = 0:1:100;
y = 0:1:100;
[xx,yy] = meshgrid(x,y) ;

z= 6*(xx.*xx)+ yy + (3*xx) + 5*(xx.*yy)+10;

surf(xx,yy,z);
cmap = jet(256);
colormap(cmap)
colorbar('vert')

plot :