/usr/include/ASL/math/ is in libasl-dev 0.1.6-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/ASL/math/aslBarycentric.h
/usr/include/ASL/math/aslDistanceFunction.h
/usr/include/ASL/math/aslDistanceFunctionAlg.h
/usr/include/ASL/math/aslIndex2Position.h
/usr/include/ASL/math/aslInterpolation.h
/usr/include/ASL/math/aslMatrices.h
/usr/include/ASL/math/aslPositionFunction.h
/usr/include/ASL/math/aslProbeTemplates.h
/usr/include/ASL/math/aslTemplateVE.h
/usr/include/ASL/math/aslTemplateVEExtras.h
/usr/include/ASL/math/aslTemplates.h
/usr/include/ASL/math/aslTemplatesExtras.h
/usr/include/ASL/math/aslVectors.h
/usr/include/ASL/math/aslVectorsDynamicLength.h
/usr/include/ASL/math/aslVectorsDynamicLengthOperations.h