Question

4.4 Advanced Functions Modify ellipsoidinfo.m, so that the function returns some information about an ellipsoid (or sphere) depending on the user's supplied input and expected output If the user supplies one input, the function will calculate information for a sphere If the user supplies three inputs, the function will calculate information for an ellipsoid. The user would supply the values in the order: a, b, then c If the user expects one output, the function will return the volume of the object object Volume of a Sphere

(MATLAB QUESTION) How to modify this function?

function [ varargout ] = ellipsoidInfo( varargin )
% enter code/comments here
end

Answer 1

Program:

ellipsoidinfo.m 1 function varargout ]-ellipsoidinfo( varargin ) 2 3 4 5 6 if nargin- 1 r-vararginflj v= (4/3) * pi * (r^3); vara rgout{1} = v; if nargout-2 s=4*pi * (r^2); 8 9 10 vara rgout(2) end s; = elseif nargin3 12 13 14 15 16 17 18 19 2θ 21 a-vararginfl b varargin2; cvararginf3ł p 1 . 6075 v=(4/3 ) * pi * a * b * c; vara rgout{1} = v; if nargout-2 s 4 pi*(ap)*(b p) (ap)(cp) (b*p) (cp) vara rgout(2) s; 3)(1/p) end else error('give correct number of arguments!' end 23

Code:

function [ varargout ] = ellipsoidinfo( varargin )
if nargin == 1
    r = varargin{1};
    v = (4/3) * pi * (r^3);
    varargout{1} = v;
    if nargout == 2
      s = 4 * pi * (r^2);
      varargout{2} = s;
    end
elseif nargin == 3
    a = varargin{1};
    b = varargin{2};
    c = varargin{3};
    p = 1.6075;
    v = ( 4/3 ) * pi * a * b * c;
    varargout{1} = v;
    if nargout == 2
      s = 4 * pi * ( ( ( (a^p)*(b^p) + (a^p)*(c^p) + (b^p)*(c^p) ) / 3 ) ^ (1/p) );
      varargout{2} = s;
    end
else
    error('give correct number of arguments!')
end

Execution and Output:

ellipsoidinfo(1) v= 4.1888 [v s] = ellipsoidinfo(1) >> s= 12.566 ellipsoidinfo(1, 2, 3) v-25.133 >> [v s] = ellipsoidinfo ( 1, 2, 3) v= 25.133 s48.972