Further Examples: Inverse

Here is the inverse of a matrix, displayed as a matrix.

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If the matrix is singular, the inverse is not computed.

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If the matrix is not square, the inverse is not computed.

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You can compute inverses of inexact matrices.

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This checks that the error is of the same order as the roundoff errors.

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The function Equal (==) cannot be used since A.B and IdentityMatrix[3] are not identical.

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Here is the inverse of a matrix over the integers modulo .

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This checks the result.

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See also PseudoInverse.

Using the Method option

Here is a somewhat sparse symbolic matrix.

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Using the method DivisionFreeRowReduction enables Inverse to compute the inverse of A quickly.

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This checks the result.

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