GraphingCalcUsers : User group for Pacific Tech's Graphing Calculator math education visualization software

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This group is for users of Pacific Tech's Graphing Calculator math education visualization software to share curriculum ideas, ask questions, share documents, etc... If you are using
this software in your classroom, please let us know what you are doing with it. This is intended to be a resource for teachers.

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Hypercube projected onto diagonal hyperplane. Generalized cross-prod The projection of a cube onto the diagonal plane specified by x + y + z = 0 will yield a hexagon with each of the parallelograms taking up two segments. Posted - Mon May 6, 2013 10:09 am	Christopher Young c56young Send Email
Vector function for oblique projections. Restricting test point to z If we restrict the test point to the z = 0 plane, then we have the same coordinates for its projection in the projected grid, as we'd expect for a linear Posted - Wed May 1, 2013 12:47 pm	Christopher Young c56young Send Email
Oblique projection onto plane, vector function This is based on the derivation at http://math.stackexchange.com/questions/117418/projection-to-the-plane-in-the-direction-of-the-vector Posted - Wed May 1, 2013 12:41 pm	Christopher Young c56young Send Email
Gram-Schmidt orthogonalization. Shortcut via projection onto plane. Here, we streamline the orthogonalization by using the formula for projection onto the plane determined by unit vectors u and v: We use the matrix identity . Posted - Fri Apr 12, 2013 6:39 pm	Christopher Young c56young Send Email
Orthogonalization of a basis (Gram-Schimidt and adapted) If we use the matrix-product versions of projections onto a line and a plane, we save some computation. It's also visually clearer. We Just back off on each Posted - Wed Apr 10, 2013 5:11 pm	Christopher Young c56young Send Email
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2011	9	11	7	25	2	32	17	9	8	7
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2003	17	1	7	3	19	4	7			2	6	49
2002	43	5	4	8	5		1	33	36	57	35	18
2001	7	15	19	20	1	3	6	1	26	10		17
2000												38

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