angle

来源： https://stackoverflow.com/questions/64580873/why-are-my-bullets-travelling-at-a-90-degree-angle-from-the-mouse

来源： https://stackoverflow.com/questions/42258637/how-to-know-the-angle-between-two-points

来源： https://stackoverflow.com/questions/42258637/how-to-know-the-angle-between-two-points

来源： https://stackoverflow.com/questions/31172794/get-angle-of-view-of-android-camera-device

来源： https://stackoverflow.com/questions/31172794/get-angle-of-view-of-android-camera-device

来源： https://stackoverflow.com/questions/31172794/get-angle-of-view-of-android-camera-device

来源： https://stackoverflow.com/questions/18070097/determining-the-average-angle

来源： https://stackoverflow.com/questions/7490660/converting-wind-direction-in-angles-to-text-words

问题 I'm trying to find out the angle of the triangle in the following, I know it should be 90 degrees, however I don't know how to actually calculate it in the following: Here's what I've tried: angle = math.cos(7/9.899) angleToDegrees = math.degrees(angle) returns: 43.XX What am I doing wrong? 回答1: It's a little more compicated than that. You need to use the law of cosines >>> A = 7 >>> B = 7 >>> C = 9.899 >>> from math import acos, degrees >>> degrees(acos((A * A + B * B - C * C)/(2.0 * A * B))

问题 ADDED INFO: I'm using the inside of a square as an arena. On start up, the square spawns in a random position, and rotation, and I can't access any of the squares attributes. I then have a moving object inside the square, that I'm building AI for, and I want the object to 'learn' where the arena walls are. Every time the object bumps into a wall, I get a touch return, so I know if its hit or not. I'm using this to map the global position of where the object hit the wall and save it ... After