# Questions tagged [coordinates]

For questions related to coordinates. This includes number line, Cartesian, polar, cylindrical, spherical coordinate systems, etc.

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### How to find the coordinates of a point after being displaced by a certain distance in a specified direction? [closed]

Suppose I have a point-sized object initially located at coordinates $(x, y)$. I want to displace this point to a new location $(p, q)$, such that the new location is exactly $d$ units away from the ...
• 97
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### Spherical Polar Rotations | Is $(\theta + \pi, \phi + \pi)$ the same as $(\theta + \pi, 0)$?

Question: I'd like some clarity on whether or not I can describe a $180^\circ$ rotation in spherical polar coordinates as $(\theta + \pi, \phi + \pi)$ affecting only the angles $\theta$ from the ...
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### If I have x and y coordinates of a point along the arc, how do I convert that to a percentage of PI?

I am using Javascript to create shapes in canvas. I am creating an arc where you specify the start and end angle of the arc to show where along a circle the arc begins and ends. They are initially set ...
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### Finding the coordinate of four points of imaginary intersecting lines which passes through end points of two intersecting lines

image I want to find the coordinates of the points A,B,C,D where two imaginary lines intersect each other, where this imaginary lines passes through the end points of the two lines L1 and L2, the ...
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### How to find coordinates of points on the circle, which is formed from intersection of two spheres?

What i did: I can find the center of a circle (x, y, z) and its radius, but how to calculate certain coordinates (let it be 10 or 20 points) on the circle? I think each step for forming points on the ...
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