org.netlib.lapack
Class Dlanst

java.lang.Object
  org.netlib.lapack.Dlanst

public class Dlanst
extends java.lang.Object

Following is the description from the original
Fortran source.  For each array argument, the Java
version will include an integer offset parameter, so
the arguments may not match the description exactly.
Contact seymour@cs.utk.edu with any questions.


 *     ..
 *
 *  Purpose
 *  =======
 *
 *  DLANST  returns the value of the one norm,  or the Frobenius norm, or
 *  the  infinity norm,  or the  element of  largest absolute value  of a
 *  real symmetric tridiagonal matrix A.
 *
 *  Description
 *  ===========
 *
 *  DLANST returns the value
 *
 *     DLANST = ( max(abs(A(i,j))), NORM = 'M' or 'm'
 *              (
 *              ( norm1(A),         NORM = '1', 'O' or 'o'
 *              (
 *              ( normI(A),         NORM = 'I' or 'i'
 *              (
 *              ( normF(A),         NORM = 'F', 'f', 'E' or 'e'
 *
 *  where  norm1  denotes the  one norm of a matrix (maximum column sum),
 *  normI  denotes the  infinity norm  of a matrix  (maximum row sum) and
 *  normF  denotes the  Frobenius norm of a matrix (square root of sum of
 *  squares).  Note that  max(abs(A(i,j)))  is not a  matrix norm.
 *
 *  Arguments
 *  =========
 *
 *  NORM    (input) CHARACTER*1
 *          Specifies the value to be returned in DLANST as described
 *          above.
 *
 *  N       (input) INTEGER
 *          The order of the matrix A.  N >= 0.  When N = 0, DLANST is
 *          set to zero.
 *
 *  D       (input) DOUBLE PRECISION array, dimension (N)
 *          The diagonal elements of A.
 *
 *  E       (input) DOUBLE PRECISION array, dimension (N-1)
 *          The (n-1) sub-diagonal or super-diagonal elements of A.
 *
 *  =====================================================================
 *
 *     .. Parameters ..

Constructor Summary

Dlanst()

Method Summary

static double

dlanst(java.lang.String norm, int n, double[] d, int _d_offset, double[] e, int _e_offset)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Dlanst

public Dlanst()

Method Detail

dlanst

public static double dlanst(java.lang.String norm,
                            int n,
                            double[] d,
                            int _d_offset,
                            double[] e,
                            int _e_offset)