Original post by number23
For example, to dilate a spheroid by a factor of k , would it just go from
(x/a)^2+(y/b)^2+(z/c)^2=1
to
(kx/a)^2+(ky/b)^2+(kz/c)^2=1
?
(x/a)^2+(y/b)^2+(z/c)^2=1
to
(kx/a)^2+(ky/b)^2+(kz/c)^2=1
?
dilate I think means enlarge
I could be wrong but to enlarge in a given direction by scale factor k, you replace the corresponding cordinate say x, by x/k
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