/sci/ - Science & Math

>>15095316
https://brilliant.org/wiki/convert-cartesian-coordinates-to-polar/

It causes problems when converting from cartesian to polar because the domain of arctan can only go from -pi/2 to pi/2, and doesn't cover a full -pi to pi.

The way I do it is always graphical, I ignore the signs of x and y, and calculate the angle between the x axis and the polar coordinate, then I'll add or take pi from there to get the angle.

The image and link seem to have a formula like yours though. Which doesn't need any graphical stuff.

On a side note, if you ever do any programming and want an arctan function with a domain of 2 pi, in C++ the function is called std::atan2(x, y), and it has a corresponding function in C too.

https://en.cppreference.com/w/cpp/numeric/math/atan2

Hope this helps, and sorry if I misunderstood something, or how things work here. I'm rather new to 4chan.