873 B
873 B
Function expm
Compute the matrix exponential, expm(A) = e^A. The matrix must be square. Not to be confused with exp(a), which performs element-wise exponentiation.
The exponential is calculated using the Padé approximant with scaling and squaring; see "Nineteen Dubious Ways to Compute the Exponential of a Matrix," by Moler and Van Loan.
Syntax
math.expm(x)
Parameters
| Parameter | Type | Description |
|---|---|---|
x |
Matrix | A square Matrix |
Returns
| Type | Description |
|---|---|
| Matrix | The exponential of x |
Throws
| Type | Description |
|---|
Examples
const A = [[0,2],[0,0]]
math.expm(A) // returns [[1,2],[0,1]]