Frees the structure containing information about the Faure sequence.

Shuffled Faure sequence initialization.

Computes a shuffled Faure sequence.

Computes the Discrete Fourier Transform of a rank-1 complex array, x.

Computes the Discrete Fourier Transform (2DFT) of a rank-2 complex array, x.

Computes the Discrete Fourier Transform (2DFT) of a rank-3 complex array, x.

Computes parameters needed by FCOST.

Computes the discrete Fourier cosine transformation of an even sequence.

Approximates the gradient using forward differences.

Approximates the Hessian using forward differences and function values.

Approximates the Jacobian of M functions in N unknowns using forward differences.

Solves the generalized Feynman-Kac PDE on a rectangular grid using a finite element Galerkin method. Initial and boundary conditions are provided.

The Discrete Fourier Transform of a complex sequence and its inverse transform.

The Discrete Fourier Transform of several complex or real sequences.

Computes the inverse Fourier transform of a complex periodic two-dimensional array.

Computes Fourier coefficients of a complex periodic two-dimensional array.

Computes the inverse Fourier transform of a complex periodic three-dimensional array.

Computes Fourier coefficients of a complex periodic three-dimensional array.

Computes the complex periodic sequence from its Fourier coefficients.

Computes the Fourier coefficients of a complex periodic sequence.

Computes parameters needed by FFTCF and FFTCB.

Computes the real periodic sequence from its Fourier coefficients.

Computes the Fourier coefficients of a real periodic sequence.

Computes parameters needed by FFTRF and FFTRB.

Computes a least-squares approximation with user-supplied basis functions.

Solves Poisson’s or Helmholtz’s equation on a two-dimensional rectangle using a fast Poisson solver based on the HODIE finite-difference scheme on a uni mesh.

Solves Poisson’s or Helmholtz’s equation on a three-dimensional box using a fast Poisson solver based on the HODIE finite-difference scheme on a uniform mesh.

Computes a Fejér quadrature rule with various classical weight functions.

Computes parameters needed by FSINT.

Computes the discrete Fourier sine transformation of an odd sequence.