tb_whullm_i(3PI) Sun Interval Performance Library tb_whullm_i(3PI)NAMEtb_whullm_i - Convex hull of two interval matrices.
DESCRIPTION
C = convex hull which contains UNION of A and B
The routine TB_WHULLM_I finds the convex set which contains both tri‐
angular band interval matrices A and B, and stores the result in an
interval matrix C. Matrices A, 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 TB_WHULLM_I( A, B, C [, UPLO] [, DIAG] )
INTERVAL, INTENT(IN) :: A(:,:), B(:,:)
INTERVAL, INTENT(OUT) :: C(:,:)
TYPE(blas_uplo_type), INTENT(IN), OPTIONAL :: UPLO
TYPE(blas_diag_type), INTENT(IN), OPTIONAL :: DIAG
where
A, B and C have shape (P+1,N) where P = band width.
ARGUMENTS
A (input)
Array of DIMENSION (P+1,N) where P = band width.
Unchanged on exit.
B (input)
Array of DIMENSION (P+1,N) where P = band width.
Unchanged on exit.
C (output)
Array of DIMENSION (P+1,N) where P = band width.
On exit, contains elementwise intersection
of A and B.
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 tb_whullm_i(3PI)
