BUILT-IN MATHEMATICA SYMBOL

# Inverse

Inverse[m]
gives the inverse of a square matrix m.

## Details and OptionsDetails and Options

• Inverse works on both symbolic and numerical matrices.
• For matrices with approximate real or complex numbers, the inverse is generated to the maximum possible precision given the input. A warning is given for ill-conditioned matrices.
• Inverse[m, Modulus->n] evaluates the inverse modulo n.
• Inverse[m, ZeroTest->test] evaluates to determine whether matrix elements are zero. The default setting is ZeroTest->Automatic.
• A Method option can also be given. Settings for exact and symbolic matrices include , , and . The default setting of Automatic switches among these methods depending on the matrix given.

## ExamplesExamplesopen allclose all

### Basic Examples (3)Basic Examples (3)

Inverse of a 2×2 matrix:

 Out[1]=

Enter the matrix in a grid:

 Out[1]=

Inverse of a symbolic matrix:

 Out[1]=

## TutorialsTutorials

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