Lambert is often cited as the first to introduce the hyperbolic fuctions but he did not do so until 1770 while Vincenzo Riccati's work (some joint with Saladini) was published between 1757 and 1767.
Lambert ay madalas na tulad ng nabanggit sa unang upang ipakilala ang hayperboliko fuctions ngunit siya hindi gawin ito hanggang 1770 habang Vincenzo Riccati ng trabaho (ilang pinagsamang sa Saladini) ay na-publish sa pagitan ng 1757 at 1767.