correct documentation (std::sqrt must be casted in example)
correct documentation (std::sqrt must be casted in example)

DaveRichmond-/vigra,dstoe/vigra,dagophil/vigra,mmuellner/vigra,cha007/vigra,psteinb/vigra,xiwei-zhang/vigra,stuarteberg/vigra,psteinb/vigra,timoMa/vigra,psteinb/vigra,dagophil/vigra,DaveRichmond-/vigra,dagophil/vigra,cha007/vigra,mmuellner/vigra,funkey/vigra,xiwei-zhang/vigra,timoMa/vigra,hmeine/vigra,hmeine/vigra,capturePointer/vigra,funkey/vigra,dagophil/vigra,ThomasWalter/vigra,capturePointer/vigra,xiwei-zhang/vigra,martinsch/vigra,ThomasWalter/vigra,capturePointer/vigra,stuarteberg/vigra,martinsch/vigra,cbecker/vigra,funkey/vigra,psteinb/vigra,mmuellner/vigra,psteinb/vigra,capturePointer/vigra,DaveRichmond-/vigra,kod3r/vigra,ThomasWalter/vigra,mmuellner/vigra,martinsch/vigra,dstoe/vigra,timoMa/vigra,funkey/vigra,ThomasWalter/vigra,capturePointer/vigra,kod3r/vigra,mmuellner/vigra,kod3r/vigra,stuarteberg/vigra,hmeine/vigra,martinsch/vigra,hmeine/vigra,ThomasWalter/vigra,cha007/vigra,ThomasWalter/vigra,stuarteberg/vigra,kod3r/vigra,psteinb/vigra,dstoe/vigra,capturePointer/vigra,dstoe/vigra,martinsch/vigra,timoMa/vigra,funkey/vigra,DaveRichmond-/vigra,funkey/vigra,kod3r/vigra,cbecker/vigra,cha007/vigra,xiwei-zhang/vigra,timoMa/vigra,dstoe/vigra,cha007/vigra,DaveRichmond-/vigra,stuarteberg/vigra,DaveRichmond-/vigra,dagophil/vigra,DaveRichmond-/vigra,cbecker/vigra,mmuellner/vigra,cbecker/vigra,hmeine/vigra,hmeine/vigra,cbecker/vigra,mmuellner/vigra,kod3r/vigra,timoMa/vigra,cbecker/vigra,cha007/vigra,dagophil/vigra,cha007/vigra,timoMa/vigra,hmeine/vigra,martinsch/vigra,xiwei-zhang/vigra,dstoe/vigra,stuarteberg/vigra,psteinb/vigra,capturePointer/vigra,ThomasWalter/vigra,xiwei-zhang/vigra,funkey/vigra,kod3r/vigra,dagophil/vigra,xiwei-zhang/vigra,stuarteberg/vigra,dstoe/vigra