logm

Computes the matrix logarithm of a square matrix.

📝 Syntax

• res = logm(x)

📥 Input argument

• x - a numeric value: scalar or square matrix (double or single)

📤 Output argument

• res - a numeric value: a square matrix

📄 Description

expm(x) computes the matrix logarithm of x.

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

💡 Example

A = eye(3, 3);
res = logm(A)
res = logm(A+i)

🕔 History

Version	📄 Description
1.0.0	initial version