org.netlib.lapack
Class Slanst

java.lang.Object
  extended by org.netlib.lapack.Slanst

public class Slanst
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 * ======= * * SLANST 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 * =========== * * SLANST returns the value * * SLANST = ( 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 SLANST as described * above. * * N (input) INTEGER * The order of the matrix A. N >= 0. When N = 0, SLANST is * set to zero. * * D (input) REAL array, dimension (N) * The diagonal elements of A. * * E (input) REAL array, dimension (N-1) * The (n-1) sub-diagonal or super-diagonal elements of A. * * ===================================================================== * * .. Parameters ..


Constructor Summary
Slanst()
           
 
Method Summary
static float slanst(java.lang.String norm, int n, float[] d, int _d_offset, float[] e, int _e_offset)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

Slanst

public Slanst()
Method Detail

slanst

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