Compute the (17,17)-Padé approximant to the exponential. More...
#include <MatrixExponential.h>
Static Public Member Functions | |
static void | run (const MatrixType &arg, MatrixType &U, MatrixType &V, int &squarings) |
Compute Padé approximant to the exponential. More... | |
Compute the (17,17)-Padé approximant to the exponential.
After exit, is the Padé approximant of around .
This function activates only if your long double is double-double or quadruple.
Definition at line 198 of file MatrixExponential.h.
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Compute Padé approximant to the exponential.
Computes U
, V
and squarings
such that is a Padé approximant of around , where denotes the matrix arg
. The degree of the Padé approximant and the value of squarings are chosen such that the approximation error is no more than the round-off error.