I have a euclidean vector a sitting at the coordinates (0, 1). I want to rotate a by 90 degrees (clockwise) around the origin: (0, 0).
I\'m trying to modulate an alpha value in a开发者_如何学Go Java application I\'m building on Android. Right now it goes like this:
I have a square, where the closest points are 1 unit away from the center. See my ascii diagram below:
I am trying to work on a project which requires me to fi开发者_如何学Pythonnd the similarity between two images. Can anyone help me with the matlab code for applying cosine similarity on images or any
Over the last two days I\'ve effectively figured out how NOT to rotate Raphael Elements. Basically I am trying to implement a multiple pivot points on element to rotate it by mouse.
I have a rotation matrix. How can I get the rotation around a specified axis contained within this matrix?
I\'m writing an isometric tile game.Each tile is twice as wide as it is tall (w:h = 2:1).A开发者_运维百科ll tiles in a map are the same size and their width and heights are known (TileWidth and TileHe
I am trying to use the asin() fu开发者_如何学JAVAnction in an iOS app to calculate an angle from the y axis. I am using trigonometry, but I must be doing something wrong with the asin() function, as w
I want to search nearest locations from coordinates (lat/lng) into mysql database, I use spherical law of cosines to searching these places :
I\'ve been skipping math clas开发者_JS百科ses, and now I have problems. :) Can you please explain to me how I should write this expression in Javascript?
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