org.netlib.lapack
Class Dpptrs
java.lang.Object
org.netlib.lapack.Dpptrs
public class Dpptrs
- 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
* =======
*
* DPPTRS solves a system of linear equations A*X = B with a symmetric
* positive definite matrix A in packed storage using the Cholesky
* factorization A = U**T*U or A = L*L**T computed by DPPTRF.
*
* Arguments
* =========
*
* UPLO (input) CHARACTER*1
* = 'U': Upper triangle of A is stored;
* = 'L': Lower triangle of A is stored.
*
* N (input) INTEGER
* The order of the matrix A. N >= 0.
*
* NRHS (input) INTEGER
* The number of right hand sides, i.e., the number of columns
* of the matrix B. NRHS >= 0.
*
* AP (input) DOUBLE PRECISION array, dimension (N*(N+1)/2)
* The triangular factor U or L from the Cholesky factorization
* A = U**T*U or A = L*L**T, packed columnwise in a linear
* array. The j-th column of U or L is stored in the array AP
* as follows:
* if UPLO = 'U', AP(i + (j-1)*j/2) = U(i,j) for 1<=i<=j;
* if UPLO = 'L', AP(i + (j-1)*(2n-j)/2) = L(i,j) for j<=i<=n.
*
* B (input/output) DOUBLE PRECISION array, dimension (LDB,NRHS)
* On entry, the right hand side matrix B.
* On exit, the solution matrix X.
*
* LDB (input) INTEGER
* The leading dimension of the array B. LDB >= max(1,N).
*
* INFO (output) INTEGER
* = 0: successful exit
* < 0: if INFO = -i, the i-th argument had an illegal value
*
* =====================================================================
*
* .. Local Scalars ..
Method Summary |
static void |
dpptrs(java.lang.String uplo,
int n,
int nrhs,
double[] ap,
int _ap_offset,
double[] b,
int _b_offset,
int ldb,
intW info)
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Dpptrs
public Dpptrs()
dpptrs
public static void dpptrs(java.lang.String uplo,
int n,
int nrhs,
double[] ap,
int _ap_offset,
double[] b,
int _b_offset,
int ldb,
intW info)