tr_constructm_i(3PI) Sun Interval Performance Library tr_constructm_i(3PI)NAMEtr_constructm_i - Constructs an interval matrix from two floating point
matrices.
DESCRIPTION
The routine TR_CONSTRUCTM_I constructs an triangular interval matrix
A from two triangular floating point matrices B and C such that all
matrix A entries Aij contain the interval [MIN(Bij,Cij),MAX(Bij,Cij)].
Both floating point matrices B and C have the same storage format. The
routine returns immediately if N is equal to zero.
SYNOPSIS
SUBROUTINE TR_CONSTRUCTM_I( A, B, C [, UPLO] [, DIAG] )
INTERVAL, INTENT(OUT) :: A(:,:)
REAL, INTENT(IN) :: B(:,:), C(:,:)
TYPE(blas_uplo_type), INTENT(IN), OPTIONAL :: UPLO
TYPE(blas_diag_type), INTENT(IN), OPTIONAL :: DIAG
where
A, B and C have shape (N,N).
ARGUMENTS
A (output)
Array of DIMENSION (N,N).
On exit, contains [MIN(Bij,Cij),MAX(Bij,Cij)]
for all A entries.
B (input)
Array of DIMENSION (N,N).
Unchanged on exit.
C (input)
Array of DIMENSION (N,N).
Unchanged on exit.
UPLO(input)
Scalar element.
Specifies if the matrix operand is an upper
or lower tringular part of the matrix.
Possible values:
UPLO = blas_upper (default)
UPLO = blas_lower
Unchanged on exit.
DIAG (input)
Scalar element.
Specifies whether or not the matrix operand
has unit diagonal entries.
Possible values:
DIAG = blas_non_unit_diag (default)
DIAG = blas_unit_diag
Unchanged on exit.
ERRORS
blas_error_alloc
A, B or C is unallocated array
blas_error_shape
shape(A) /= shape(B) /= shape(C)
6 Mar 2009 tr_constructm_i(3PI)
