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// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2008-2009 Gael Guennebaud <gael.guennebaud@inria.fr>
// Copyright (C) 2006-2008 Benoit Jacob <jacob.benoit.1@gmail.com>
//
// Eigen is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 3 of the License, or (at your option) any later version.
//
// Alternatively, you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of
// the License, or (at your option) any later version.
//
// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
// FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License or the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License and a copy of the GNU General Public License along with
// Eigen. If not, see <http://www.gnu.org/licenses/>.
// This file is a base class plugin containing matrix specifics coefficient wise functions.
/** \returns an expression of the coefficient-wise absolute value of \c *this
*
* Example: \include MatrixBase_cwiseAbs.cpp
* Output: \verbinclude MatrixBase_cwiseAbs.out
*
* \sa cwiseAbs2()
*/
EIGEN_STRONG_INLINE const CwiseUnaryOp<internal::scalar_abs_op<Scalar>,Derived>
cwiseAbs() const { return derived(); }
/** \returns an expression of the coefficient-wise squared absolute value of \c *this
*
* Example: \include MatrixBase_cwiseAbs2.cpp
* Output: \verbinclude MatrixBase_cwiseAbs2.out
*
* \sa cwiseAbs()
*/
EIGEN_STRONG_INLINE const CwiseUnaryOp<internal::scalar_abs2_op<Scalar>,Derived>
cwiseAbs2() const { return derived(); }
/** \returns an expression of the coefficient-wise square root of *this.
*
* Example: \include MatrixBase_cwiseSqrt.cpp
* Output: \verbinclude MatrixBase_cwiseSqrt.out
*
* \sa cwisePow(), cwiseSquare()
*/
inline const CwiseUnaryOp<internal::scalar_sqrt_op<Scalar>,Derived>
cwiseSqrt() const { return derived(); }
/** \returns an expression of the coefficient-wise inverse of *this.
*
* Example: \include MatrixBase_cwiseInverse.cpp
* Output: \verbinclude MatrixBase_cwiseInverse.out
*
* \sa cwiseProduct()
*/
inline const CwiseUnaryOp<internal::scalar_inverse_op<Scalar>,Derived>
cwiseInverse() const { return derived(); }
/** \returns an expression of the coefficient-wise == operator of \c *this and a scalar \a s
*
* \warning this performs an exact comparison, which is generally a bad idea with floating-point types.
* In order to check for equality between two vectors or matrices with floating-point coefficients, it is
* generally a far better idea to use a fuzzy comparison as provided by isApprox() and
* isMuchSmallerThan().
*
* \sa cwiseEqual(const MatrixBase<OtherDerived> &) const
*/
inline const CwiseUnaryOp<std::binder1st<std::equal_to<Scalar> >,Derived>
cwiseEqual(const Scalar& s) const
{
return CwiseUnaryOp<std::binder1st<std::equal_to<Scalar> >,Derived>
(derived(), std::bind1st(std::equal_to<Scalar>(), s));
}
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