/usr/include/Bpp/Numeric/Function/ is in libbpp-core-dev 2.1.0-1.
This file is owned by root:root, with mode 0o755.
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/usr/include/Bpp/Numeric/Function/AbstractNumericalDerivative.h
/usr/include/Bpp/Numeric/Function/AbstractOptimizer.h
/usr/include/Bpp/Numeric/Function/BfgsMultiDimensions.h
/usr/include/Bpp/Numeric/Function/BrentOneDimension.h
/usr/include/Bpp/Numeric/Function/ConjugateGradientMultiDimensions.h
/usr/include/Bpp/Numeric/Function/DirectionFunction.h
/usr/include/Bpp/Numeric/Function/DownhillSimplexMethod.h
/usr/include/Bpp/Numeric/Function/FivePointsNumericalDerivative.h
/usr/include/Bpp/Numeric/Function/FunctionTools.h
/usr/include/Bpp/Numeric/Function/Functions.h
/usr/include/Bpp/Numeric/Function/GoldenSectionSearch.h
/usr/include/Bpp/Numeric/Function/MetaOptimizer.h
/usr/include/Bpp/Numeric/Function/NewtonBacktrackOneDimension.h
/usr/include/Bpp/Numeric/Function/NewtonOneDimension.h
/usr/include/Bpp/Numeric/Function/OneDimensionOptimizationTools.h
/usr/include/Bpp/Numeric/Function/OptimizationStopCondition.h
/usr/include/Bpp/Numeric/Function/Optimizer.h
/usr/include/Bpp/Numeric/Function/PowellMultiDimensions.h
/usr/include/Bpp/Numeric/Function/ReparametrizationFunctionWrapper.h
/usr/include/Bpp/Numeric/Function/SimpleMultiDimensions.h
/usr/include/Bpp/Numeric/Function/SimpleNewtonMultiDimensions.h
/usr/include/Bpp/Numeric/Function/ThreePointsNumericalDerivative.h
/usr/include/Bpp/Numeric/Function/TwoPointsNumericalDerivative.h