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12 lines
484 B
Plaintext
12 lines
484 B
Plaintext
--- manmake/wester-1994.chapt.txt.orig 2012-09-26 12:02:56.000000000 +0200
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+++ manmake/wester-1994.chapt.txt 2012-09-26 12:03:11.000000000 +0200
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@@ -96,7 +96,7 @@
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* 62. (OK) Invert a 2x2 symbolic matrix.
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Verify(Simplify(Inverse({{a,b},{1,a*b}})),
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{{a/(a^2-1), -1/(a^2-1)},
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- {-1/(b*(a^2-1)), a/(b*(a^2-1))}});
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+ {-1/((a^2-1)*b), a/((a^2-1)*b)}});
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* 63. (BUG) Compute the determinant of the 4x4 Vandermonde matrix.
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Factor(Determinant(VandermondeMatrix
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({a,b,c,d})));
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