Question 182137
Your question is a bit confusing, but here's some about the coordinate systems:

Cartesian are square like.  Pick an arbitrary point and call that 0,0,0.  From there, you can go left / right, up / down, or front / back.  The amount of each would be the directions of x , y , z.  Generally, + x is right, + y is up, and +z is coming toward you.


Polar coordinates also need an arbitrary point, but deal with that point in relation to a sphere.  It needs a r, theta, and phi.  The r is the distance from that point (like a radius), the theta is the angle with respect to a line cutting that point, where 0 degrees is generally due right of the picture.  Phi does the same concept, but perpendicular to theta.


Hope this helps.