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Astro*Dictionary by Michael Erlewine

 

 

 

 

1 article for "Cylindrical Coordinates"

Cylindrical Coordinates [Astro*Index]

When (r,L,z) specify the position of a point on the surface of a cylinder of radius, r, at a `longitude' angle, L, and a height, z.

Conversions between rectangular cartesian and cylindrical coordinates are effected by means of the formulas:

 

x   =   rcosL
y   =   rsinL
z   =   z
r   =   sqrt(x2 + y2)
L   =   atan2(y,x)
z   =   z

 

See also:
♦ Cartesian Coordinates

 

Astro*Index Copyright © 1997 Michael Erlewine