Update einleitung.tex
Update grundlagen.tex
fix conclusion in 60000020.tex
remove picins.sty
Merge pull request #12 from bugybunny/patch-2

Update grundlagen.tex
Merge pull request #11 from bugybunny/patch-1

Update einleitung.tex
Merge branch 'master' of github.com:AndreasFMueller/MathI2