Okay, imagine a 3D plane. With X, Y, Z coordinates. You have a line drawn from a given point to a given point. For instance, line A starting at 0, 0, 0, to 50, 50, 50. Or line B starting at -20, 50, -10, to 14, -7, 22.75. Or line C, 10, -10, 0, to 10, -50, 0. I need an equation, or method to use where when you are given the start XYZ, and the end XYZ, and you can determine what the XYZ coordinates will be any distance along the line. For instance, on line C, you would say, what is the XYZ for the point 5 units along the line. And the equation when 5 is plugged in returns 10, -15, 0. Because that's the point 5 units away from the line's origin. Lines A and B however are pointing in directions where all three Axis values have to be calculated because the line is not pointing along one single axis. Thanks
2007-03-17
20:21:20
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3 answers
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asked by
Anonymous
in
Mathematics