Difference between revisions of "Invert"

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= Invert( c, i, j ) =
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Returns the inverse of matrix «c».  The two index parameters, «i» and «j» specify the indexes of «c» along which the inversion is to take place and must have the same length, implying that «c» is a square matrix.
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= Example =
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:Variable MatrixA :=
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:j [[image:DownIndex.jpg]], i [[image:RightIndex.jpg]]
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:{| border="1"
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! !! 1 !! 2 !! 3
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|-
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! a || 4 || 1 || 2
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|-
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! b || 2 || 5 || 3
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|-
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! c || 3 || 2 || 7
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|}
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:Invert(MatrixA,i,j) &rarr;
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:j [[image:DownIndex.jpg]], i [[image:RightIndex.jpg]]
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:{| border="1"
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! !! 1 !! 2 !! 3
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|-
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! a || 0.326 || -0.034 || -0.079
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|-
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! b || -0.056 || 0.247 || -0.090
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|-
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! c || -0.124 || -0.056 || 0.202
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|}
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= See Also =
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* [[:Category:Matrix Functions|Matrix Functions]]
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* [[SingularValueDecomp]]
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* [[Transpose]]
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* [[MatrixMultiply]]

Revision as of 01:55, 28 May 2009


Invert( c, i, j )

Returns the inverse of matrix «c». The two index parameters, «i» and «j» specify the indexes of «c» along which the inversion is to take place and must have the same length, implying that «c» is a square matrix.

Example

Variable MatrixA :=
j DownIndex.jpg, i RightIndex.jpg
1 2 3
a 4 1 2
b 2 5 3
c 3 2 7
Invert(MatrixA,i,j) →
j DownIndex.jpg, i RightIndex.jpg
1 2 3
a 0.326 -0.034 -0.079
b -0.056 0.247 -0.090
c -0.124 -0.056 0.202

See Also

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