MATLAB: Matlab Error (Z must be a matrix, not a scalar or vector.)

linear algebra

Hello

I was trying to plot using the following code but i get this error. Can someone help me please? Thank You

x = -2.5:.1:2.5;

y = -2.5:.1:2.5;

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

z = 2*sin(x.*y);

mesh(x,y,z)

grid on

hold on

Error using mesh (line 76) Z must be a matrix, not a scalar or vector.

Is this what you want?

x = -2.5:.1:2.5;

y = -2.5:.1:2.5;

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

Z = 2*sin(X.*Y);

mesh(X,Y,Z)

grid on

hold on

George Papazafeiropoulos

[X,Y] = meshgrid(-5:.2:5);
Z = Y .* sin(X) - X .* cos(Y);
surf(X,Y,Z)

You probably intended to define ‘x’ and ‘y’ this way:

x = -5:0.1:5;
y = -5:0.1:5;

Make that change and your code works!