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See the recommended documentation of this function

Scilab help >> Linear Algebra > expm

expm

square matrix exponential

Calling Sequence

expm(X)

Arguments

X

square matrix with real or complex entries.

Description

X is a square matrix expm(X) is the matrix

expm(X) = I + X + X^2 /2 + ...

The computation is performed by first block-diagonalizing X and then applying a Pade approximation on each block.

Examples

X=[1 2;3 4]
expm(X)
logm(expm(X))

See Also

  • logm — square matrix logarithm
  • bdiag — block diagonalization, generalized eigenvectors
  • coff — resolvent (cofactor method)
  • log — natural logarithm
  • exp — element-wise exponential
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Last updated:
Thu May 12 11:44:14 CEST 2011