Help in graph plotting

Given a function 𝑧(𝑥,𝑦)=10sin 𝑡.where 𝑡=√𝑥2+𝑦2.

Create a figure containing of twodifferent three-dimensional subplots (i.e. mesh and contour plots) of the function 𝑧(𝑥,𝑦)where both 𝑥 and 𝑦 are ranging from -10 to 10. For both subplots, label the axes and showthe color bar to identify the variation of z.

x=linspace(-10,10);
y=linspace(-10,10);
t=sqrt(x.^(2)+y.^(2));

Z = 10*sin(sqrt(x.^(2)+y.^(2)));

%graphing
figure(1)
mesh(Z);
xlabel('x')
ylabel('y')
zlabel('10 sin(t)')

figure(2)
contour3(Z);
xlabel('x')
ylabel('y')
zlabel('10 sin(t)')

What went wrong actually?

No graph were plotted when run

Answer 1

[Walter Roberson]

x=linspace(-10,10);
y=linspace(-10,10) .';      %CHANGED
t=sqrt(x.^(2)+y.^(2));
Z = 10*sin(sqrt(x.^(2)+y.^(2)));
%graphing
figure(1)
mesh(Z);
xlabel('x')
ylabel('y')
zlabel('10 sin(t)')

figure(2)
contour3(Z);
xlabel('x')
ylabel('y')
zlabel('10 sin(t)')