org.netlib.lapack
Class Dlantp

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

public class Dlantp
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 * ======= * * DLANTP returns the value of the one norm, or the Frobenius norm, or * the infinity norm, or the element of largest absolute value of a * triangular matrix A, supplied in packed form. * * Description * =========== * * DLANTP returns the value * * DLANTP = ( 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 DLANTP as described * above. * * UPLO (input) CHARACTER*1 * Specifies whether the matrix A is upper or lower triangular. * = 'U': Upper triangular * = 'L': Lower triangular * * DIAG (input) CHARACTER*1 * Specifies whether or not the matrix A is unit triangular. * = 'N': Non-unit triangular * = 'U': Unit triangular * * N (input) INTEGER * The order of the matrix A. N >= 0. When N = 0, DLANTP is * set to zero. * * AP (input) DOUBLE PRECISION array, dimension (N*(N+1)/2) * The upper or lower triangular matrix A, packed columnwise in * a linear array. The j-th column of A is stored in the array * AP as follows: * if UPLO = 'U', AP(i + (j-1)*j/2) = A(i,j) for 1<=i<=j; * if UPLO = 'L', AP(i + (j-1)*(2n-j)/2) = A(i,j) for j<=i<=n. * Note that when DIAG = 'U', the elements of the array AP * corresponding to the diagonal elements of the matrix A are * not referenced, but are assumed to be one. * * WORK (workspace) DOUBLE PRECISION array, dimension (LWORK), * where LWORK >= N when NORM = 'I'; otherwise, WORK is not * referenced. * * ===================================================================== * * .. Parameters ..


Constructor Summary
Dlantp()
           
 
Method Summary
static double dlantp(java.lang.String norm, java.lang.String uplo, java.lang.String diag, int n, double[] ap, int _ap_offset, double[] work, int _work_offset)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

Dlantp

public Dlantp()
Method Detail

dlantp

public static double dlantp(java.lang.String norm,
                            java.lang.String uplo,
                            java.lang.String diag,
                            int n,
                            double[] ap,
                            int _ap_offset,
                            double[] work,
                            int _work_offset)