Florence, Pietro Antonio Brigonci, 1701.
Geometrica demostratio theorematum Hugenianorum circa logisticam, seu logarithmicam lineam.
First edition of Grandi’s demonstration of Huygen’s logarithmic curve. Huygens had first enunciated theorems concerning the logarithmic or logistic curve (y = b ln(x/a) or x = aey/b) in a communication read before the Paris Academy in 1669; Grandi here demonstrates them in print for the first time. Torricelli had..... More