Whatever one might say about method, epistemically speaking, the aesthetic is prior to the mathematical. The mathematical is found in the analysis of the beautiful.
replyTruth, beauty and goodness are known as the “transcendentals” for a reason. They are linked. They don’t come one after the other.
replyMathematics and Art - https://en.wikipedia.org/wiki/Mathematics_and_art
replyWikipedia on "Sagrada Família" - https://en.wikipedia.org/wiki/Sagrada_Fam%C3%ADlia (see "Geometric Details" section).
Gaudí used hyperboloid structures in later designs for Sagrada Família (more obviously after 1914). However, there are a few places on the nativity façade—a design not equated with Gaudí's ruled-surface design—where the hyperboloid appears.