SUPERFÍCIES, CURVAS E ESFERAS DE GRACELI. COS Π FUNÇÃO DELTA DE GRACELI. = δ ( x )G = - pk / pw COS Π δ ( x )G Gn = 1 / 1/ Gn [ k[pr] ph] * Gn = [-s] - pk / pw COS Π δ ( x )G Gn = 1 / 1/ Gn [ k[pr] ph] * Gn = ...