Posted by forest on Sunday, October 16, 2011 at 11:32am.
using basic trigonometry derive the following equations, which are used to convert cartesian to polar coordinates and vice versa. why is the cos(phi)in the x term?
x = R cos (phi) sin (lamda)
y = R sin (phi)
they are used in orthogonal projection of a spherical surface to a flat surface in the (x y) plane.
where (phi)=latitude
(lamda)=longitude

Maths trigonometry  Steve, Monday, October 17, 2011 at 10:53am
wikipedia has a nice article explaining this projection. Your example uses an origin of (0,0) for the projection, reducing the complexity of the equations considerably.

Maths trigonometry  suzi, Wednesday, September 3, 2014 at 3:42pm
Graph the oriented angle in standard position.
7π
4
Answer This Question
Related Questions
 Calculus  Evaluate, in spherical coordinates, the triple integral of f(rho,...
 Precalculs  I have no idea how to do these type of problems. Problem...
 Climate Physics  Find the insolation in Wm^2 at summer solstice for a low ...
 calculus  We are not going to do that work for you, but will be glad to help ...
 tigonometry  expres the following as sums and differences of sines or cosines ...
 Physics  Proove a*sin(x)+b*sin(x+phi)=((a+b)^2*cos(phi)^1/2*sin(x+phi/2)
 precalculus PLEASE HELP!!  Rewrite 4 sin(x) 1 cos(x) as A sin(x + phi) A= phi...
 trigonometry  if tan theta = 1/7 and tan phi= 1/3 then prove that cos 2 theta= ...
 Precalculus  Suppose that the point (rho, theta, phi)= (12, 2pi/3, 5pi/4) in ...
 Physics  The electric flux through each of the six sides of a rectangular box ...
More Related Questions