/usr/include/BALL/MATHS/LINALG/ is in libball1.4-dev 1.4.1+20111206-3.
This file is owned by root:root, with mode 0o755.
..
/usr/include/BALL/MATHS/LINALG/SVDSolver.h
/usr/include/BALL/MATHS/LINALG/SVDSolver.iC
/usr/include/BALL/MATHS/LINALG/SVDSolver.ih
/usr/include/BALL/MATHS/LINALG/baseFilterIterator.h
/usr/include/BALL/MATHS/LINALG/baseIterator.h
/usr/include/BALL/MATHS/LINALG/bidirectionalFilterIterator.h
/usr/include/BALL/MATHS/LINALG/bidirectionalIterator.h
/usr/include/BALL/MATHS/LINALG/cblas.h
/usr/include/BALL/MATHS/LINALG/columnIterator.h
/usr/include/BALL/MATHS/LINALG/diagonalIterator.h
/usr/include/BALL/MATHS/LINALG/eigenSolver.h
/usr/include/BALL/MATHS/LINALG/eigenSolver.iC
/usr/include/BALL/MATHS/LINALG/eigenSolver.ih
/usr/include/BALL/MATHS/LINALG/elementColumnIterator.h
/usr/include/BALL/MATHS/LINALG/elementRowIterator.h
/usr/include/BALL/MATHS/LINALG/forwardFilterIterator.h
/usr/include/BALL/MATHS/LINALG/forwardIterator.h
/usr/include/BALL/MATHS/LINALG/global.h
/usr/include/BALL/MATHS/LINALG/lapack.h
/usr/include/BALL/MATHS/LINALG/linalgException.h
/usr/include/BALL/MATHS/LINALG/lowerTriangularMatrix.ih
/usr/include/BALL/MATHS/LINALG/lowerTriangularMatrixBasicFunctions.iC
/usr/include/BALL/MATHS/LINALG/lowerTriangularMatrixConstructors.iC
/usr/include/BALL/MATHS/LINALG/lowerTriangularMatrixIO.iC
/usr/include/BALL/MATHS/LINALG/matrix.h
/usr/include/BALL/MATHS/LINALG/matrix.ih
/usr/include/BALL/MATHS/LINALG/matrixBasicFunctions.iC
/usr/include/BALL/MATHS/LINALG/matrixConstructors.iC
/usr/include/BALL/MATHS/LINALG/matrixIO.iC
/usr/include/BALL/MATHS/LINALG/matrixInverter.h
/usr/include/BALL/MATHS/LINALG/matrixInverter.iC
/usr/include/BALL/MATHS/LINALG/matrixInverter.ih
/usr/include/BALL/MATHS/LINALG/matrixIterator.iC
/usr/include/BALL/MATHS/LINALG/matrixTraits.h
/usr/include/BALL/MATHS/LINALG/randomAccessFilterIterator.h
/usr/include/BALL/MATHS/LINALG/randomAccessIterator.h
/usr/include/BALL/MATHS/LINALG/reverseIterator.h
/usr/include/BALL/MATHS/LINALG/rowIterator.h
/usr/include/BALL/MATHS/LINALG/sources.cmake
/usr/include/BALL/MATHS/LINALG/symmetricMatrix.ih
/usr/include/BALL/MATHS/LINALG/symmetricMatrixBasicFunctions.iC
/usr/include/BALL/MATHS/LINALG/symmetricMatrixConstructors.iC
/usr/include/BALL/MATHS/LINALG/symmetricMatrixIO.iC
/usr/include/BALL/MATHS/LINALG/upperTriangularMatrix.ih
/usr/include/BALL/MATHS/LINALG/upperTriangularMatrixBasicFunctions.iC
/usr/include/BALL/MATHS/LINALG/upperTriangularMatrixConstructors.iC
/usr/include/BALL/MATHS/LINALG/upperTriangularMatrixIO.iC
/usr/include/BALL/MATHS/LINALG/vector.h
/usr/include/BALL/MATHS/LINALG/vector.ih
/usr/include/BALL/MATHS/LINALG/vectorBasicFunctions.iC
/usr/include/BALL/MATHS/LINALG/vectorConstructors.iC
/usr/include/BALL/MATHS/LINALG/vectorIO.iC
/usr/include/BALL/MATHS/LINALG/vectorIterator.h
/usr/include/BALL/MATHS/LINALG/vectorIterators.iC