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Indirect Influences for Graphs >> Indirect Influences for Graphs > polyexpm

polyexpm

Returns the exponential matrix for a polynomial matrix.

Calling Sequence

polyexpm(D) // Show the the exponential matrix of the polynomial matrix D.
E=polyexpm(D) // Store the exponential matrix of the polynomial matrix D in the E variable.

Parameters

D:

Polynomial matrix to calculate its exponential.

E:

Name of the variable to store the exponential matrix of a given polynomial matrix.

Description

This function calulates the exponential matrix of a polynomial matrix using the analytic definition of the exponential function of a matrix. Use with careful. This function is required by the pwp and heatkernel functions.

Examples

t=poly(0,'t')  // Define the variable t.
D = [t 1-t;t^2 1] // Define a 2x2 matrix with polynomial entries.
E = polyexpm(D) // Calculates the exponential matrix of the polynomial matrix D.

See also

Authors

Bibliography

Indirect Influences, Rafael Díaz. preprint http://arxiv.org/abs/0906.1610v1

Cálculo de Influencias Indirectas en Scilab. Rafael Díaz, Jorge Catumba.

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