37 lines
995 B
C++
37 lines
995 B
C++
// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2015 Alec Jacobson <alecjacobson@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#ifndef IGL_NULL_H
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#define IGL_NULL_H
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#include "igl_inline.h"
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#include <Eigen/Dense>
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namespace igl
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{
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// Like MATLAB's null
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//
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// Compute a basis for the null space for the given matrix A: the columns of
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// the output N form a basis for the space orthogonal to that spanned by the
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// rows of A.
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//
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// Inputs:
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// A m by n matrix
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// Outputs:
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// N n by r matrix, where r is the row rank of A
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template <typename DerivedA, typename DerivedN>
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IGL_INLINE void null(
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const Eigen::PlainObjectBase<DerivedA> & A,
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Eigen::PlainObjectBase<DerivedN> & N);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "null.cpp"
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#endif
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#endif
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