QR decomposition: Difference between revisions
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(→Library QR, gonum/matrix: more library changes) |
(→{{header|Tcl}}: added zkl) |
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0.0 -175.0 70.0 |
0.0 -175.0 70.0 |
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0.0 0.0 -35.0 |
0.0 0.0 -35.0 |
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</pre> |
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=={{header|zkl}}== |
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<lang zkl>var [const] GSL=Import("zklGSL"); // libGSL (GNU Scientific Library) |
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A:=GSL.Matrix(3,3).set(12.0, -51.0, 4.0, |
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6.0, 167.0, -68.0, |
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4.0, 24.0, -41.0); |
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Q,R:=A.QRDecomp(); |
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println("Q:\n",Q.format()); |
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println("R:\n",R.format()); |
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println("Q*R:\n",(Q*R).format());</lang> |
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{{out}} |
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<pre> |
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Q: |
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-0.86, 0.47, -0.22 |
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-0.43, -0.88, -0.20 |
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-0.29, -0.08, 0.95 |
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R: |
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-14.00, -34.71, 37.43 |
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0.00, -172.80, 65.07 |
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0.00, 0.00, -26.19 |
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Q*R: |
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12.00, -51.00, 4.00 |
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6.00, 167.00, -68.00 |
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4.00, 24.00, -41.00 |
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</pre> |
</pre> |
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