Further comments added, minor bug fix
Further comments added, minor bug fix

AnjaKoala/Watterman-Eggert-algorithm,AnjaKoala/Watterman-Eggert-algorithm,AnjaKoala/Watterman-Eggert-algorithm,AnjaKoala/Watterman-Eggert-algorithm,AnjaKoala/Watterman-Eggert-algorithm,AnjaKoala/Watterman-Eggert-algorithm,AnjaKoala/Watterman-Eggert-algorithm