math equation MATLAB

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MatLab

Hi,
how can i create a Cone without using matlab builtin function?

Posted 23-Dec-13 3:20am

m.r.m.40

Updated 23-Dec-13 4:51am

Richard MacCutchan

v2

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[no name] 23-Dec-13 9:22am

Read the manuals and google first. Nobody here is keen on doing the work for you!

m.r.m.40 23-Dec-13 9:24am

lol.

Richard MacCutchan 23-Dec-13 10:48am

The same way you create a sphere: by writing some code.

m.r.m.40 23-Dec-13 12:54pm

very clever,
Thank you.
you can read the comments under the previous question you may get something.

Richard MacCutchan 23-Dec-13 13:00pm

I don't need anything.

m.r.m.40 1-Jan-14 23:48pm

http://www.codeproject.com/Questions/701032/math-equation-MATLAB

well the cone is solved and for creating a sphere using same formula i need to give the circle a little slope instead of giving it height( means the same center(x,y,z) but different angle )

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m.r.m.40 · Answer 1 · 2014-01-01T17:42:00

Solution 2

here it is,
code of a circle then by changing the z as the circle height and changing the r as its radius i can create a cone( at least something like it ).

VB

r=1
teta=-pi:0.01:pi
x=r*cos(teta);
y=r*sin(teta);
z=zeros(1,numel(x));
plot3(x,y,z);
hold on

% ----------------------------------- %

for i = 1 : 20
    z=z+0.05;
    r=r-0.05;
    x=r*cos(teta);
    y=r*sin(teta);
    plot3(x,y,z);
    hold on
end
hold off

Posted 1-Jan-14 17:42pm

m.r.m.40

Comments

m.r.m.40 1-Jan-14 23:47pm

http://www.codeproject.com/Questions/701032/math-equation-MATLAB

well this is the cone and for creating a sphere using same formula i need to give the circle a little slope instead of giving it height( means the same center(x,y,z) but different angle )