/usr/share/doc/libpixels-java/api/com/jhlabs/math/ is in libpixels-java 2.1.3+svn.42-2.
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/usr/share/doc/libpixels-java/api/com/jhlabs/math/BinaryFunction.html
/usr/share/doc/libpixels-java/api/com/jhlabs/math/BlackFunction.html
/usr/share/doc/libpixels-java/api/com/jhlabs/math/CellularFunction2D.html
/usr/share/doc/libpixels-java/api/com/jhlabs/math/CompositeFunction1D.html
/usr/share/doc/libpixels-java/api/com/jhlabs/math/CompoundFunction2D.html
/usr/share/doc/libpixels-java/api/com/jhlabs/math/FBM.html
/usr/share/doc/libpixels-java/api/com/jhlabs/math/FFT.html
/usr/share/doc/libpixels-java/api/com/jhlabs/math/FractalSumFunction.html
/usr/share/doc/libpixels-java/api/com/jhlabs/math/Function1D.html
/usr/share/doc/libpixels-java/api/com/jhlabs/math/Function2D.html
/usr/share/doc/libpixels-java/api/com/jhlabs/math/Function3D.html
/usr/share/doc/libpixels-java/api/com/jhlabs/math/ImageFunction2D.html
/usr/share/doc/libpixels-java/api/com/jhlabs/math/MarbleFunction.html
/usr/share/doc/libpixels-java/api/com/jhlabs/math/MathFunction1D.html
/usr/share/doc/libpixels-java/api/com/jhlabs/math/Noise.html
/usr/share/doc/libpixels-java/api/com/jhlabs/math/RidgedFBM.html
/usr/share/doc/libpixels-java/api/com/jhlabs/math/SCNoise.html
/usr/share/doc/libpixels-java/api/com/jhlabs/math/TurbulenceFunction.html
/usr/share/doc/libpixels-java/api/com/jhlabs/math/VLNoise.html
/usr/share/doc/libpixels-java/api/com/jhlabs/math/package-frame.html
/usr/share/doc/libpixels-java/api/com/jhlabs/math/package-summary.html
/usr/share/doc/libpixels-java/api/com/jhlabs/math/package-tree.html