ge_norm_i(3PI) Sun Interval Performance Library ge_norm_i(3PI)NAMEge_norm_i - General interval matrix norms.
DESCRIPTION
R = GE_NORM_I ( A, NORM )
The routine GE_NORM_I computes ONE_NORM, FROBENIUS_NORM, INFINITY_NORM
or MAX_NORM of a general interval matrix A depending on the value
passed as the NORM operator argument. The resulting scalar R is always
interval. If M (for nonsymmetric matrices) or N is equal to zero, this
routine returns immediately with the output scalar R set to zero
interval.
SYNOPSIS
INTERVAL FUNCTION GE_NORM_I( A [, NORM] )
INTERVAL, INTENT(IN) :: A(:,:)
TYPE(blas_norm_type), INTENT(IN), OPTIONAL :: NORM
where
A has shape (M,N).
ARGUMENTS
A (input)
Array of DIMENSION (M,N).
Unchanged on exit.
NORM(input)
Scalar element. On entry, should be equal to
blas_norm_type value, i.e. NORM should take one
of the following values:
blas_one_norm | blas_frobenius_norm |
blas_inf_norm | blas_max_norm
Default value: blas_one_norm
Unchanged on exit.
ERRORS
blas_error_alloc
A is unallocated array
blas_error_shape
A has unappropriate shape
blas_error_norm
Unappropriate NORM argument
6 Mar 2009 ge_norm_i(3PI)