Definition:Calculus of Variations
- Results about calculus of variations can be found here.
Some sources suggest that, in a sense, the earliest problem in the calculus of variations arose in one of the legends of the founding of Carthage; the city was granted as much land as could be enclosed by a given length.
Karl Weierstrass ushered in a new era of precise reasoning with his lectures in $1879$ on the subject. One of his students, Oskar Bolza, took on the subject and developed the Chicago school of the calculus of variations.