| 
									
										
										
										
											2012-05-24 11:52:50 -04:00
										 |  |  | USING: math.matrices math.vectors tools.test math kernel ;
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							| 
									
										
										
										
											2008-03-01 17:00:45 -05:00
										 |  |  | IN: math.matrices.tests | 
					
						
							| 
									
										
										
										
											2007-09-20 18:09:08 -04:00
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							|  |  |  | [ | 
					
						
							|  |  |  |     { { 0 } { 0 } { 0 } } | 
					
						
							|  |  |  | ] [ | 
					
						
							|  |  |  |     3 1 zero-matrix | 
					
						
							|  |  |  | ] unit-test | 
					
						
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 | 
					
						
							| 
									
										
										
										
											2012-05-04 14:23:38 -04:00
										 |  |  | { | 
					
						
							| 
									
										
										
										
											2007-09-20 18:09:08 -04:00
										 |  |  |     { { 1 0 0 } | 
					
						
							|  |  |  |        { 0 1 0 } | 
					
						
							|  |  |  |        { 0 0 1 } } | 
					
						
							| 
									
										
										
										
											2012-05-04 14:23:38 -04:00
										 |  |  | } [ | 
					
						
							| 
									
										
										
										
											2007-09-20 18:09:08 -04:00
										 |  |  |     3 identity-matrix | 
					
						
							|  |  |  | ] unit-test | 
					
						
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							| 
									
										
										
										
											2012-05-04 14:23:38 -04:00
										 |  |  | { | 
					
						
							|  |  |  |     { { 1 0 0 } | 
					
						
							|  |  |  |        { 0 2 0 } | 
					
						
							|  |  |  |        { 0 0 3 } } | 
					
						
							|  |  |  | } [ | 
					
						
							|  |  |  |     { 1 2 3 } diagonal-matrix | 
					
						
							|  |  |  | ] unit-test | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2012-07-30 19:15:21 -04:00
										 |  |  | { | 
					
						
							|  |  |  |     { { 1 1 1 } | 
					
						
							|  |  |  |       { 4 2 1 } | 
					
						
							|  |  |  |       { 9 3 1 } | 
					
						
							|  |  |  |       { 25 5 1 } } | 
					
						
							|  |  |  | } [ | 
					
						
							| 
									
										
										
										
											2012-07-30 19:44:08 -04:00
										 |  |  |     { 1 2 3 5 } 3 vandermonde-matrix | 
					
						
							| 
									
										
										
										
											2012-07-30 19:15:21 -04:00
										 |  |  | ] unit-test | 
					
						
							|  |  |  | 
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							| 
									
										
										
										
											2012-05-04 14:23:38 -04:00
										 |  |  | { | 
					
						
							|  |  |  |     { | 
					
						
							|  |  |  |         { 1 0 0 } | 
					
						
							|  |  |  |         { 0 1 0 } | 
					
						
							|  |  |  |         { 0 0 1 } | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } [ | 
					
						
							|  |  |  |     3 3 0 eye | 
					
						
							|  |  |  | ] unit-test | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     { | 
					
						
							|  |  |  |         { 0 1 0 } | 
					
						
							|  |  |  |         { 0 0 1 } | 
					
						
							|  |  |  |         { 0 0 0 } | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } [ | 
					
						
							|  |  |  |     3 3 1 eye | 
					
						
							|  |  |  | ] unit-test | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     { | 
					
						
							|  |  |  |         { 0 0 0 } | 
					
						
							|  |  |  |         { 1 0 0 } | 
					
						
							|  |  |  |         { 0 1 0 } | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } [ | 
					
						
							|  |  |  |     3 3 -1 eye | 
					
						
							|  |  |  | ] unit-test | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     { | 
					
						
							|  |  |  |         { 1 0 0 0 } | 
					
						
							|  |  |  |         { 0 1 0 0 } | 
					
						
							|  |  |  |         { 0 0 1 0 } | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } [ | 
					
						
							|  |  |  |     3 4 0 eye | 
					
						
							|  |  |  | ] unit-test | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     { | 
					
						
							|  |  |  |         { 0 1 0 } | 
					
						
							|  |  |  |         { 0 0 1 } | 
					
						
							|  |  |  |         { 0 0 0 } | 
					
						
							|  |  |  |         { 0 0 0 } | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } [ | 
					
						
							|  |  |  |     4 3 1 eye | 
					
						
							|  |  |  | ] unit-test | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     { | 
					
						
							|  |  |  |         { 0 0 0 } | 
					
						
							|  |  |  |         { 1 0 0 } | 
					
						
							|  |  |  |         { 0 1 0 } | 
					
						
							|  |  |  |         { 0 0 1 } | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } [ | 
					
						
							|  |  |  |     4 3 -1 eye | 
					
						
							|  |  |  | ] unit-test | 
					
						
							|  |  |  | 
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							| 
									
										
										
										
											2012-05-04 21:01:21 -04:00
										 |  |  | [ | 
					
						
							|  |  |  |     { { 1   1/2 1/3 1/4 } | 
					
						
							|  |  |  |       { 1/2 1/3 1/4 1/5 } | 
					
						
							|  |  |  |       { 1/3 1/4 1/5 1/6 } | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | ] [ 3 4 hilbert-matrix ] unit-test | 
					
						
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							|  |  |  | [ | 
					
						
							|  |  |  |     { { 1 2 3 4 } | 
					
						
							|  |  |  |       { 2 1 2 3 } | 
					
						
							|  |  |  |       { 3 2 1 2 } | 
					
						
							|  |  |  |       { 4 3 2 1 } } | 
					
						
							|  |  |  | ] [ 4 toeplitz-matrix ] unit-test | 
					
						
							|  |  |  | 
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							|  |  |  | [ | 
					
						
							|  |  |  |     { { 1 2 3 4 } | 
					
						
							|  |  |  |       { 2 3 4 0 } | 
					
						
							|  |  |  |       { 3 4 0 0 } | 
					
						
							|  |  |  |       { 4 0 0 0 } } | 
					
						
							|  |  |  | ] [ 4 hankel-matrix ] unit-test | 
					
						
							|  |  |  | 
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							| 
									
										
										
										
											2007-09-20 18:09:08 -04:00
										 |  |  | [ | 
					
						
							|  |  |  |     { { 1 0 4 } | 
					
						
							| 
									
										
										
										
											2012-05-04 21:01:21 -04:00
										 |  |  |       { 0 7 0 } | 
					
						
							|  |  |  |       { 6 0 3 } } | 
					
						
							| 
									
										
										
										
											2007-09-20 18:09:08 -04:00
										 |  |  | ] [ | 
					
						
							|  |  |  |     { { 1 0 0 } | 
					
						
							| 
									
										
										
										
											2012-05-04 21:01:21 -04:00
										 |  |  |       { 0 2 0 } | 
					
						
							|  |  |  |       { 0 0 3 } } | 
					
						
							|  |  |  | 
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							| 
									
										
										
										
											2007-09-20 18:09:08 -04:00
										 |  |  |     { { 0 0 4 } | 
					
						
							| 
									
										
										
										
											2012-05-04 21:01:21 -04:00
										 |  |  |       { 0 5 0 } | 
					
						
							|  |  |  |       { 6 0 0 } } | 
					
						
							| 
									
										
										
										
											2007-09-20 18:09:08 -04:00
										 |  |  | 
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							|  |  |  |     m+ | 
					
						
							|  |  |  | ] unit-test | 
					
						
							|  |  |  | 
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							|  |  |  | [ | 
					
						
							|  |  |  |     { { 1 0 4 } | 
					
						
							|  |  |  |        { 0 7 0 } | 
					
						
							|  |  |  |        { 6 0 3 } } | 
					
						
							|  |  |  | ] [ | 
					
						
							|  |  |  |     { { 1 0 0 } | 
					
						
							|  |  |  |        { 0 2 0 } | 
					
						
							|  |  |  |        { 0 0 3 } } | 
					
						
							| 
									
										
										
										
											2012-07-30 19:15:21 -04:00
										 |  |  | 
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							| 
									
										
										
										
											2007-09-20 18:09:08 -04:00
										 |  |  |     { { 0 0 -4 } | 
					
						
							|  |  |  |        { 0 -5 0 } | 
					
						
							|  |  |  |        { -6 0 0 } } | 
					
						
							|  |  |  | 
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							|  |  |  |     m- | 
					
						
							|  |  |  | ] unit-test | 
					
						
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							|  |  |  | [ | 
					
						
							|  |  |  |     { 10 20 30 } | 
					
						
							|  |  |  | ] [ | 
					
						
							|  |  |  |     10 { 1 2 3 } n*v | 
					
						
							|  |  |  | ] unit-test | 
					
						
							|  |  |  | 
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							|  |  |  | [ | 
					
						
							|  |  |  |     { 3 4 } | 
					
						
							|  |  |  | ] [ | 
					
						
							|  |  |  |     { { 1 0 } | 
					
						
							|  |  |  |        { 0 1 } } | 
					
						
							|  |  |  | 
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							|  |  |  |     { 3 4 } | 
					
						
							|  |  |  | 
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							|  |  |  |     m.v | 
					
						
							|  |  |  | ] unit-test | 
					
						
							|  |  |  | 
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							|  |  |  | [ | 
					
						
							|  |  |  |     { 4 3 } | 
					
						
							|  |  |  | ] [ | 
					
						
							|  |  |  |     { { 0 1 } | 
					
						
							|  |  |  |        { 1 0 } } | 
					
						
							|  |  |  | 
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							|  |  |  |     { 3 4 } | 
					
						
							|  |  |  | 
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							|  |  |  |     m.v | 
					
						
							|  |  |  | ] unit-test | 
					
						
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							|  |  |  | [ | 
					
						
							|  |  |  |     { { 6 } } | 
					
						
							|  |  |  | ] [ | 
					
						
							|  |  |  |     { { 3 } } { { 2 } } m. | 
					
						
							|  |  |  | ] unit-test | 
					
						
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							|  |  |  | [ | 
					
						
							|  |  |  |     { { 11 } } | 
					
						
							|  |  |  | ] [ | 
					
						
							|  |  |  |     { { 1 3 } } { { 5 } { 2 } } m. | 
					
						
							|  |  |  | ] unit-test | 
					
						
							|  |  |  | 
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							|  |  |  | [ | 
					
						
							|  |  |  |     { { 28 } } | 
					
						
							|  |  |  | ] [ | 
					
						
							|  |  |  |     { { 2 4 6 } } | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  |     { { 1 } | 
					
						
							|  |  |  |        { 2 } | 
					
						
							|  |  |  |        { 3 } } | 
					
						
							|  |  |  |      | 
					
						
							|  |  |  |     m. | 
					
						
							|  |  |  | ] unit-test | 
					
						
							|  |  |  | 
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							| 
									
										
										
										
											2010-02-25 11:15:53 -05:00
										 |  |  | [ { 0 0 1 } ] [ { 1 0 0 } { 0 1 0 } cross ] unit-test | 
					
						
							| 
									
										
										
										
											2007-09-20 18:09:08 -04:00
										 |  |  | [ { 1 0 0 } ] [ { 0 1 0 } { 0 0 1 } cross ] unit-test | 
					
						
							|  |  |  | [ { 0 1 0 } ] [ { 0 0 1 } { 1 0 0 } cross ] unit-test | 
					
						
							| 
									
										
										
										
											2010-02-25 11:15:53 -05:00
										 |  |  | [ { 0.0 -0.707 0.707 } ] [ { 1.0 0.0 0.0 } { 0.0 0.707 0.707 } cross ] unit-test | 
					
						
							| 
									
										
										
										
											2010-07-23 23:41:08 -04:00
										 |  |  | [ { 0 -2 2 } ] [ { -1 -1 -1 } { 1 -1 -1 } cross ] unit-test | 
					
						
							| 
									
										
										
										
											2008-11-29 01:44:46 -05:00
										 |  |  | [ { 1 0 0 } ] [ { 1 1 0 } { 1 0 0 } proj ] unit-test | 
					
						
							| 
									
										
										
										
											2009-03-27 19:31:25 -04:00
										 |  |  | 
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							| 
									
										
										
										
											2009-06-12 04:35:25 -04:00
										 |  |  | [ { { 4181 6765 } { 6765 10946 } } ] | 
					
						
							|  |  |  | [ { { 0 1 } { 1 1 } } 20 m^n ] unit-test | 
					
						
							| 
									
										
										
										
											2014-01-05 23:08:55 -05:00
										 |  |  | [ { { 0 1 } { 1 1 } } -20 m^n ] [ negative-power-matrix? ] must-fail-with | 
					
						
							| 
									
										
										
										
											2012-05-24 11:52:50 -04:00
										 |  |  | 
 | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     { { 0 5 0 10 } { 6 7 12 14 } { 0 15 0 20 } { 18 21 24 28 } } | 
					
						
							|  |  |  | } | 
					
						
							|  |  |  | [ { { 1 2 } { 3 4 } } { { 0 5 } { 6 7 } } kron ] unit-test | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     { | 
					
						
							|  |  |  |         { 1 1 1 1 } | 
					
						
							|  |  |  |         { 1 -1 1 -1 } | 
					
						
							|  |  |  |         { 1 1 -1 -1 } | 
					
						
							|  |  |  |         { 1 -1 -1 1 } | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } [ { { 1 1 } { 1 -1 } } dup kron ] unit-test | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     { | 
					
						
							|  |  |  |         { 1 1 1 1 1 1 1 1 } | 
					
						
							|  |  |  |         { 1 -1 1 -1 1 -1 1 -1 } | 
					
						
							|  |  |  |         { 1 1 -1 -1 1 1 -1 -1 } | 
					
						
							|  |  |  |         { 1 -1 -1 1 1 -1 -1 1 } | 
					
						
							|  |  |  |         { 1 1 1 1 -1 -1 -1 -1 } | 
					
						
							|  |  |  |         { 1 -1 1 -1 -1 1 -1 1 } | 
					
						
							|  |  |  |         { 1 1 -1 -1 -1 -1 1 1 } | 
					
						
							|  |  |  |         { 1 -1 -1 1 -1 1 1 -1 } | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } [ { { 1 1 } { 1 -1 } } dup dup kron kron ] unit-test | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     { | 
					
						
							|  |  |  |         { 1 1 1 1 1 1 1 1 } | 
					
						
							|  |  |  |         { 1 -1 1 -1 1 -1 1 -1 } | 
					
						
							|  |  |  |         { 1 1 -1 -1 1 1 -1 -1 } | 
					
						
							|  |  |  |         { 1 -1 -1 1 1 -1 -1 1 } | 
					
						
							|  |  |  |         { 1 1 1 1 -1 -1 -1 -1 } | 
					
						
							|  |  |  |         { 1 -1 1 -1 -1 1 -1 1 } | 
					
						
							|  |  |  |         { 1 1 -1 -1 -1 -1 1 1 } | 
					
						
							|  |  |  |         { 1 -1 -1 1 -1 1 1 -1 } | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } [ { { 1 1 } { 1 -1 } } dup dup kron swap kron ] unit-test | 
					
						
							| 
									
										
										
										
											2012-05-24 12:02:47 -04:00
										 |  |  | 
 | 
					
						
							|  |  |  | 
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							|  |  |  | ! kron is not generally commutative, make sure we have the right order | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     { | 
					
						
							|  |  |  |         { 1 2 3 4 5 1 2 3 4 5 } | 
					
						
							|  |  |  |         { 6 7 8 9 10 6 7 8 9 10 } | 
					
						
							|  |  |  |         { 1 2 3 4 5 -1 -2 -3 -4 -5 } | 
					
						
							|  |  |  |         { 6 7 8 9 10 -6 -7 -8 -9 -10 } | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } | 
					
						
							|  |  |  | [ | 
					
						
							|  |  |  |     { { 1 1 } { 1 -1 } } | 
					
						
							|  |  |  |     { { 1 2 3 4 5 } { 6 7 8 9 10 } } kron | 
					
						
							|  |  |  | ] unit-test | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     { | 
					
						
							|  |  |  |         { 1 1 2 2 3 3 4 4 5 5 } | 
					
						
							|  |  |  |         { 1 -1 2 -2 3 -3 4 -4 5 -5 } | 
					
						
							|  |  |  |         { 6 6 7 7 8 8 9 9 10 10 } | 
					
						
							|  |  |  |         { 6 -6 7 -7 8 -8 9 -9 10 -10 } | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } | 
					
						
							|  |  |  | [ | 
					
						
							|  |  |  |     { { 1 1 } { 1 -1 } } | 
					
						
							|  |  |  |     { { 1 2 3 4 5 } { 6 7 8 9 10 } } swap kron | 
					
						
							|  |  |  | ] unit-test | 
					
						
							| 
									
										
										
										
											2012-08-08 20:02:39 -04:00
										 |  |  | 
 | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     { { 5 10 15 } | 
					
						
							|  |  |  |       { 6 12 18 } | 
					
						
							|  |  |  |       { 7 14 21 } } | 
					
						
							|  |  |  | } [ { 5 6 7 } { 1 2 3 } outer ] unit-test | 
					
						
							| 
									
										
										
										
											2012-10-02 20:59:47 -04:00
										 |  |  | 
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | CONSTANT: test-points { | 
					
						
							|  |  |  |     { 80  27  89 } { 80  27  88 } { 75  25  90 } | 
					
						
							|  |  |  |     { 62  24  87 } { 62  22  87 } { 62  23  87 } | 
					
						
							|  |  |  |     { 62  24  93 } { 62  24  93 } { 58  23  87 } | 
					
						
							|  |  |  |     { 58  18  80 } { 58  18  89 } { 58  17  88 } | 
					
						
							|  |  |  |     { 58  18  82 } { 58  19  93 } { 50  18  89 } | 
					
						
							|  |  |  |     { 50  18  86 } { 50  19  72 } { 50  19  79 } | 
					
						
							|  |  |  |     { 50  20  80 } { 56  20  82 } { 70  20  91 } | 
					
						
							|  |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     { | 
					
						
							|  |  |  |         { 84+2/35 22+23/35 24+4/7 } | 
					
						
							|  |  |  |         { 22+23/35 9+104/105 6+87/140 } | 
					
						
							|  |  |  |         { 24+4/7 6+87/140 28+5/7 } | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } [ | 
					
						
							|  |  |  |     test-points sample-cov-matrix | 
					
						
							|  |  |  | ] unit-test | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     { | 
					
						
							|  |  |  |         { 80+8/147 21+85/147 23+59/147 } | 
					
						
							|  |  |  |         { 21+85/147 9+227/441 6+15/49 } | 
					
						
							|  |  |  |         { 23+59/147 6+15/49 27+17/49 } | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } [ | 
					
						
							|  |  |  |     test-points cov-matrix | 
					
						
							|  |  |  | ] unit-test | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2012-10-14 14:35:13 -04:00
										 |  |  | { | 
					
						
							|  |  |  |     { | 
					
						
							|  |  |  |         { 5 5 } | 
					
						
							|  |  |  |         { 5 5 } | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } [ | 
					
						
							|  |  |  |     2 2 5 <matrix> | 
					
						
							|  |  |  | ] unit-test | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     { | 
					
						
							|  |  |  |         { 5 5 } | 
					
						
							|  |  |  |         { 5 5 } | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } [ | 
					
						
							|  |  |  |     2 2 [ 5 ] make-matrix | 
					
						
							|  |  |  | ] unit-test | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     { | 
					
						
							|  |  |  |         { 0 1 2 } | 
					
						
							|  |  |  |         { 1 2 3 } | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } [ | 
					
						
							|  |  |  |     2 3 [ + ] make-matrix-with-indices | 
					
						
							|  |  |  | ] unit-test | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     { | 
					
						
							|  |  |  |         { 0 1 } | 
					
						
							|  |  |  |         { 0 1 } | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } [ | 
					
						
							|  |  |  |     2 square-rows | 
					
						
							|  |  |  | ] unit-test | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     { | 
					
						
							|  |  |  |         { 0 0 } | 
					
						
							|  |  |  |         { 1 1 } | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } [ | 
					
						
							|  |  |  |     2 square-cols | 
					
						
							|  |  |  | ] unit-test | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     { | 
					
						
							|  |  |  |         { 5 6 } | 
					
						
							|  |  |  |         { 5 6 } | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } [ | 
					
						
							|  |  |  |     { 5 6 } square-rows | 
					
						
							|  |  |  | ] unit-test | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     { | 
					
						
							|  |  |  |         { 5 5 } | 
					
						
							|  |  |  |         { 6 6 } | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } [ | 
					
						
							|  |  |  |     { 5 6 } square-cols | 
					
						
							|  |  |  | ] unit-test | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2013-04-25 17:48:16 -04:00
										 |  |  | { t } [ { } square-matrix? ] unit-test | 
					
						
							|  |  |  | { t } [ { { 1 } } square-matrix? ] unit-test | 
					
						
							|  |  |  | { t } [ { { 1 2 } { 3 4 } } square-matrix? ] unit-test | 
					
						
							|  |  |  | { f } [ { { 1 } { 2 3 } } square-matrix? ] unit-test | 
					
						
							|  |  |  | { f } [ { { 1 2 } } square-matrix? ] unit-test |