SvdLeastSqr
Section: C Library Functions (3)
Updated: IRIT Version 6.0
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NAME
SvdLeastSqr()
SYNOPSIS
xtra_lib/nure_svd.c:277
RealType SvdLeastSqr(RealType *A, RealType *x, RealType *b, int NData, int Nx)
DESCRIPTION
Least square solves A x = b.
The vector X is of size Nx, vector b is of size NData and matrix A is
of size Nx by NData.
Uses singular value decomposition.
If A != NULL is SVD decomposition is computed, otherwise (A == NULL) a
solution is computed for the given b and is placed in x.
PARAMETERS:
A: The matrix of size Nx by NData.
x: The vector of sought solution of size Nx.
b: The vector of coefficients of size NData.
NData, Nx: Dimensions of input.
FUNCTION RETURN VALUE
RealType: The reciprocal of the condition number, if A != NULL, zero
otherwise.
ORIGIN
(C) Copyright 1989/90-95 Gershon Elber, Technion, IIT
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- PARAMETERS:
-
- FUNCTION RETURN VALUE
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- ORIGIN
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