sb_constructm_i(3PI) Sun Interval Performance Library sb_constructm_i(3PI)NAMEsb_constructm_i - Constructs an interval matrix from two floating point
matrices.
DESCRIPTION
The routine SB_CONSTRUCTM_I constructs an symmetric band interval
matrix A from two symmetric band 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 or P is less than zero.
SYNOPSIS
SUBROUTINE SB_CONSTRUCTM_I( A, B, C [, UPLO] )
INTERVAL, INTENT(OUT) :: A(:,:)
REAL, INTENT(IN) :: B(:,:), C(:,:)
TYPE(blas_uplo_type), INTENT(IN), OPTIONAL :: UPLO
where
A, B and C have shape (P+1,N) where P = band width.
ARGUMENTS
A (output)
Array of DIMENSION (P+1,N) where P = band width.
On exit, contains [MIN(Bij,Cij),MAX(Bij,Cij)]
for all A entries.
B (input)
Array of DIMENSION (P+1,N) where P = band width.
Unchanged on exit.
C (input)
Array of DIMENSION (P+1,N) where P = band width.
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.
ERRORS
blas_error_alloc
A, B or C is unallocated array
blas_error_shape
shape(A) /= shape(B) /= shape(C)
6 Mar 2009 sb_constructm_i(3PI)
