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2012-05-28 03:36:57 +0100 | asked a question | Variable not found Hi, why does this snippet produces "variable 'a' not found"? I looked all over and I just can't figure it out. |
2012-05-28 03:35:36 +0100 | marked best answer | How to decrease the iteration step from 1 to 0.1? Here's one approach, which works by giving Sage enough values that it can guess what step you want: |
2012-05-27 20:43:01 +0100 | asked a question | How to decrease the iteration step from 1 to 0.1? I would like 'a' to be iterated by the step 0.1, and not 1. How can I achieve this? |
2012-05-26 11:51:13 +0100 | asked a question | Given a direction vector and a point, how to draw a 3d line? I have a point and a direction vector How would I draw a 3d line based upon these 2 arguments? I looked over at the documentation but I couldnt find it. |
2012-05-21 13:56:19 +0100 | asked a question | Let user move a frenet trihedron along a curve? How to "animate" a frenet trihedron along a given curve? I believe this is similar to what I'm looking for: http://www.math.byu.edu/~math302/cont... but in the context of curves, because my task is to draw this curve: and give the user ability to move a frenet trihedron along that curve (using a parameter and @interact) I know how to draw a curve and basics of interact: But I don't have enough knowledge about frenet trihedron. If anyone could help me out I would appreciate it. |
2012-04-07 13:18:22 +0100 | marked best answer | How to orthogonaly project a 3d plot to coordinate planes? Is this what you mean? We can just "slice" the vector here to get the coordinate pieces. Naturally, orthogonal projection to some random plane would be more involved (though basically you could use the vector projection, I guess), but maybe you don't need that much firepower. |
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2012-04-06 12:54:47 +0100 | asked a question | How to orthogonaly project a 3d plot to coordinate planes? Hi, I created a 3d plot with I looked over at google for some projection() functions but I didn't find much. Basically what I need to do is orthogonally project that plot onto coordinate planes (x, y, z). If anyone has any idea or an approximate algorithm, that would be nice. Edit: is it possible that this is an orthogonal projection to coordinate planes? I'm showing 3 plots, first has z = 0, second has x = 0 and third has y = 0. |