Frank Kuehnel fkuehnel

fkuehnel / HashTable.java

Created December 12, 2012 00:13

Associative Map Performance Tests

	// provide plenty of heap memory java -Xmx1500m ...
	import java.util.*;

	public class HashTable {

	public static void main(String[] args) {
	long insertDurationSum = 0;
	long[] insertDurationMeas = new long[10];
	final Hashtable<Integer,Double> ht = new Hashtable<Integer,Double>();

fkuehnel / Clifford.hs

Created December 11, 2012 21:55

Haskell module for Clifford Algebra tensor representations, and a Geometric Algebra module utilizing the tensor representation

	-- credit goes to sigfpe
	{-# LANGUAGE MultiParamTypeClasses
	,TemplateHaskell
	,GeneralizedNewtypeDeriving
	,DeriveFunctor
	,FunctionalDependencies
	,FlexibleInstances
	,UndecidableInstances
	,FlexibleContexts
	,Rank2Types #-}

fkuehnel / FastSudokuSolver5.hs

Created December 11, 2012 03:29

Fast Sudoku Solver

	module Main where

	import qualified Data.Vector.Unboxed as V
	import qualified Data.Vector as BV (generate,(!))
	import Data.List (foldl',sort,group)
	import Data.Char (chr, ord)
	import Data.Word
	import Data.Bits
	import Control.Monad
	import Data.Maybe

fkuehnel / ExtractMath.java

Created March 11, 2012 22:30

PDFBox extension to extract previously tagged math areas from a PDF document

	package org.apache.pdfbox;

	import org.apache.pdfbox.exceptions.InvalidPasswordException;

	import org.apache.pdfbox.pdmodel.PDDocument;
	import org.apache.pdfbox.pdmodel.PDPage;
	import org.apache.pdfbox.pdmodel.interactive.annotation.PDAnnotation;
	import org.apache.pdfbox.pdmodel.common.PDRectangle;
	import org.apache.pdfbox.util.PDFTextStripperByArea;

fkuehnel / mathmltagger.lua

Created March 11, 2012 21:15

Tagging Math Expressions in PDF documents with Lualatex

	-- element tree, http://etree.luaforge.net/ (is a bit buggy for the {decl = false} option)
	local el = require "etree"
	-- nodelist visualization (optional), https://gist.github.com/556247
	-- local viz = require "viznodelist"


	function convertToMathML(head)
	return {tag="not implemented"}
	end