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| 2015-01-17 16:50:35 +0200 | asked a question | How Can I slove this problem in sage? Sorry for my bad English. Problem: Write a procedure that accepts as input an orthogonal matrix A |- O(2m), with m >= 1, such that A^2= -I(2m) [subscript 2m] and give as output an orthonormal basis of R^2m type: u1,Au1,u2,Au2, ... , um,Aum` Test the procedure on matrices of type A = tMJM [t apex] where M |- O(2M) is a random matrix and J |- O(2m) is the block matrix 2x2 all equal to J = [column 1] ( 0 1) [column 2] (-1 0) |
Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.