Creating solid 3d object

Dear all matlab users,

I want to generate solid 3d object

n = 100;
a=1;

% r const
teta = linspace(0,pi/2,n);teta =teta';
phi  = linspace(0,pi/2,n);
r=1;
x = r.*sin(teta)*cos(phi) ;
y = r.*sin(teta)*sin(phi) ;
z = r.*cos(teta)*ones(1,n);
figure;plot3(x,y,z,'or');grid minor

% phi const
teta = linspace(0,pi/2,n);
r    = linspace(0,a,n);r=r';
phi  = pi/4;
x = r*sin(teta)*cos(phi);
y = r*sin(teta)*sin(phi);
z = r*cos(teta);

figure;plot3(x,y,z,'or');grid minor

Now I want to combine thos variables so it would be solid 3d object

I don't want to use for loop.

I think the solution should be somthing like,

multiply of a horizontal 2d matrix by vertical 2d matrix

and multiplication result is 3d matrix.

Any help would be appreciated...

Answer 1

[Walter Roberson]

MATLAB does not have any built-in 3D matrix multiplication.