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# Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)

from spack.package import *


class RTensor(RPackage):
    """Tensor product of arrays.

    The tensor product of two arrays is notionally an outer product of the
    arrays collapsed in specific extents by summing along the appropriate
    diagonals."""

    cran = "tensor"

    license("GPL-2.0-or-later")

    version("1.5", sha256="e1dec23e3913a82e2c79e76313911db9050fb82711a0da227f94fc6df2d3aea6")
    version("1.4", sha256="6f1643da018d58a0aaa27260df6fdf687fc36f4cd1964931b3180b7df8c0e642")