inv
Computes multiplicative inverses.
Syntax
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inv(X)-
Xis a number or a matrix
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Description
If z is a non-zero complex number, then inv(z) = 1/z.
If A is a non-singular matrix, then inv(A) is the inverse of A.
Examples
inv(2)
1/2 (=0.5)
inv(5/7)
7/5 (=1.4)
inv(π)
0.318309886184 (=π⁻¹)
A ≔ ❨❨2, 0, 0❩, ❨1, 0, −2❩, ❨0, 1, 4❩❩
⎛ 2 0 0⎞ ⎜ 1 0 −2⎟ ⎝ 0 1 4⎠
inv(A)
⎛ 0.5 0 0⎞ ⎜ −1 2 1⎟ ⎝0.25 −0.5 0⎠