# The earth's spherical coordinate system

Consider a rectangular coordinate system with origin at the center of the earth, z-axis through the North Pole, and x-axis through the prime-meridian. Find the rectangular coordinates of Beijing, China

(39Ù' 55'N,116Ù' 25'E )degree. A minute is 1/60degree . Assume the earth is a sphere of radius R=6367km.

Beijing has coordinates=

(x,y,z)

https://brainmass.com/math/calculus-and-analysis/earths-spherical-coordinate-system-411956

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Beijing Cartesian coordinates are identified clearly in this solution.

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