Rịba ama amaokwu a dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka amaokwu ahụ:  Nkọwa: Enwere ike ịsị na ngụkọta nke mgbanwe malitere site na nsogbu nke Newton na 1687, nke nsogbu nsogbu brachistochrone nke Johann Bernoulli (1696) welitere. Ọ dọọrọ uche Jakob Bernoulli na Marquis de l'Hôpital ozugbo, ma Leonhard Euler bu ụzọ kọwaa isiokwu ahụ, malite na 1733. Ọrụ Euler kpaliri Lagrange inye onyinye dị ukwuu n'echiche ahụ. Mgbe Euler hụrụ ọrụ 1755 nke Lagrange dị afọ iri na itoolu, Euler hapụrụ usoro geometric nke ya na-akwado usoro nyocha nke Lagrange ma weghachite isiokwu ahụ na ngụkọta nke mgbanwe na nkuzi 1756 ya Elementa Calculi Variationum. Legendre (1786) setịpụrụ usoro, ọ bụghị afọ ojuju zuru oke, maka ịkpa ókè nke maxima na minima. Isaac Newton na Gottfried Leibniz tinyekwara uche n'okwu a n'oge gboo. N'ịkpa oke a, Vincenzo Brunacci (1810), Carl Friedrich Gauss (1829), Siméon Poisson (1831), Mikhail Ostrogradsky (1834), na Carl Jacobi (1837) so na ndị nyere aka. Otu ọrụ dị mkpa bụ nke Sarrus (1842) nke Cauchy (1844) chịkọtara ma melite. Strauch (1849), Jellett (1850), Otto Hesse (1857), Alfred Clebsch (1858), na Carll (1885) dere akwụkwọ ndị ọzọ bara uru na ihe ncheta, ma eleghị anya ọrụ kasị mkpa nke narị afọ a bụ nke Weierstrass. Ihe ọmụmụ ya a ma ama banyere nkà ihe ọmụma ahụ na-eme ka e nwee mgbanwe dị ukwuu, a pụkwara ikwu na ọ bụ ya bụ onye mbụ mere ka o guzosie ike na ntọala a na-apụghị ịgbagha agbagha. Nsogbu nke 20 na nke 23 nke Hilbert bipụtara na 1900 gbara ume mmepe ọzọ. Na narị afọ nke 20 David Hilbert, Emmy Noether, Leonida Tonelli, Henri Lebesgue na Jacques Hadamard n'etiti ndị ọzọ nyere onyinye dị mkpa. Marston Morse tinyere mgbakọ na mwepụ nke mgbanwe n'ihe a na-akpọzi ozizi Morse. Lev Pontryagin, Ralph Rockafellar na F. H. Clarke mepụtara ngwá ọrụ mgbakọ na mwepụ ọhụrụ maka ngụkọta nke mgbanwe na usoro nchịkwa kachasị mma. Usoro mmemme nke Richard Bellman bụ...  Ajụjụ: Gịnị bụ aha echiche ahụ Alfred Clebsch tinyere n'ụlọ ọrụ ya?
onye na-eme ihe dị mkpa