How to plot equations with complex parts?
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I would like to plot the equation for a sphere, in which I had to reorganise to:
Z = sqrt(1 - X^2 - Y^2)
However I get a error saying my equation cannot be complex. How do I get around this?
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Answers (1)
KSSV
on 6 Jul 2017
You can use parametric form of equations of sphere and plot it as shown below:
Radius = 1 ;
Height = 1 ;
M = 50 ;
N = 50 ;
% Discretizing the theta and phi of the shell
nT = -linspace(0,2*pi,M+1) ;
nP = linspace(0,pi,N+1) ;
[T, P] = meshgrid(nT,nP) ;
% Convert grid to cartesian coordintes
X = Radius.*cos(T).*cos(P);
Y = Radius.*cos(T).*sin(P);
Z = Height*Radius.*sin(T) ;
%
surf(X,Y,Z)
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