tr_encm_i(3PI) Sun Interval Performance Library tr_encm_i(3PI)NAMEtr_encm_i - If an interval matrix is enclosed in another.
DESCRIPTION
TRUE if A IS_ENCLOSED in B
The function TR_ENCM_I checks if an triangular interval matrix A is
enclosed in another triangular interval matrix B.
A IS_ENCLOSED in B if and only if Aij IS_ENCLOSED in Bij for all
entries of A and B. Matrices A and B have the same storage format. The
routine returns .FALSE. if N is equal to zero.
SYNOPSIS
LOGICAL FUNCTION TR_ENCM_I( A, B [, UPLO] [, DIAG] )
INTERVAL, INTENT(IN) :: A(:,:), B(:,:)
TYPE(blas_uplo_type), INTENT(IN), OPTIONAL :: UPLO
TYPE(blas_diag_type), INTENT(IN), OPTIONAL :: DIAG
where
A and B have shape (N,N).
ARGUMENTS
A (input)
Array of DIMENSION (N,N).
Unchanged on exit.
B (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 or B is unallocated array
blas_error_shape
shape(A) /= shape(B)
6 Mar 2009 tr_encm_i(3PI)
