Calculating the velocity (vector) from a 2-Dline
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Hi all I have a line (path) which is drawn by mouse on the screen. The line is 3 column vector [X Y T] where x is the x position along x-axis, y is the y position along Y-axis and T is the time (second) that x,y are registered.
ex. line = [10, 1, 1.2; 12, 2, 1.3; ...]
Since the data (line) is discrete I am confused in calculating the velocity vector. further in calculating the acceleration vector (if needed)
can you help me in resolving this issue?