I\'m trying to animate some bitmaps out in relation to a center point. They don\'t all start at that center point, but I want them to fly out as though a force from that center point slammed into them
I have a matrix containing angl开发者_Python百科es and I need to compute the mean and the variance.
I need to calculate the angle between lines. I need to calculate atan. So I am using such code static inline CGFloat angleBetweenLinesInRadians2(CGPoint line1Start, CGPoint line1End)
Please help with the algorithm of calculating the slope So we have a Cartesian coordinate system. X right at Y the top. There is a line which passes through the center of coordinates.
I\'m not the best in Maths, but for what I am doing now I need to calculate the angle of the vector which is 开发者_运维知识库shown as arrow in the picture below:
i need to draw a polygon of \"n\" sides given 2 points (the center and 1 of his vertex) just that i suck in math. I have been reading a lot and all this is what i have been able to figure it (i dont k
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