Keywords - Function Groups - @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

## math

cabs
computes absolute value of a complex array
cceil
Computes ceil for a complex array
cconj
Conjugated array
ccos
Complex cosine
ccosh
Complex hyperbolic cosine
cdiv
Complex division
cexp
Complex exponential
cfloor
Computes floor for a complex array
cimag
Extracts imaginary part of a complex array
cinv
Complex inverse matrix
cln
Complex natural logarithm
cmatdiv
Computes the complex solution of A x = b
cmatmul
Computes the complex matrix multiplication of X and Y
cmul
Complex multiplication
complex
Generates a complex array
cplot
Plot of x and y in absolute space
cplotfunc
Plots a function of x and y-space
cpolar
Complex numbers in polar coordinates
creal
Extracts real part of an complex array
csin
Complex sine
csinh
Complex sine hyperbolicus
csort
csort sorts the rows of a complex matrix with respect to the absolute value of the complex numbers. If a column c is specified the rows of the matrix will be ordered with respect to the elements of column c in ascending (descending) order.
csortcol
sorts with respect to either a real part of a column or an imaginary part of a column c. If 1 <= c <= cols(xr) it sorts after the real part of x, if cols(xr) < c <= cols(xr)+cols(xi) it sorts the imaginary part after column c-cols(xr).
csqrt
computes square root of a complex number
csub
Complex subtraction two arrays of complex numbers
ctan
Complex tangens
ctanh
Complex tangens hyperbolicus
DGdecompS
computes the square root of a positive semi-definite matrix, using an eigen value decomposition
eiscg
Computes the eigenvalues and eigenvectors of a complex general matrix
eisrg
Computes the eigenvalues and eigenvectors of a real general matrix
eisrs
computes the eigenvalues and eigenvectors of a real symmetric matrix
ErrDLL
evaluates and displays error-messages from the eispack.dll or eispack.so, respectively.
Fouriereval
Evaluates the basis functions of fourier series based on the period and the grid points, where the functions are evaluated.
Fouriertrans
Calculates the coefficient in applying a basis expansion by using Fourier series. In this case, it is assumed that the data unit can be expressed by a linear combination of finite terms of sine and cosine functions.
GaussLegendre
abscissas and weights of the Gauss-Legendre n-point quadrature.
gFourierInversion
is a generic function that approximates the density of a distribution function by numerically inverting its characteristic function.
Jacobirot
Jacobirot produces an orthogonal matrix used in the Jacobi rotation.
mat2rot
Decomposes an orthonormal matrix into a set of rotation matrices.
mathmain
sets defaults for library math
mathtest
executes some tests for the quantlets defined in math.lib.
mbessel3
calculates the modified Bessel function of the third kind with index lambda
orthonormal
Computes an orthonormal system of column vectors using the Gramm-Schmidt procedure.
qp0
solves a quadratic optimization problem with linear inequality constraints
rot2mat
Computes an orthonormal matrix from a set of Givens rotations.
StandardNormalCharf
computes the characteristic function of a one-dimensional normally distributed random variable.
SurfaceInterpol
Given a surface on a regular 2-dimensional grid, SurfaceInterpol computes the surface value at unknown points by a local polynomial interpolation

Keywords - Function Groups - @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

 (C) MD*TECH Method and Data Technologies, 05.02.2006 Impressum