00677naa#a2200193#i#450# EN\\bibl\97952 20250505133108.1 2686-9896 20250428b2025####ek#y0engy0150####ca RU DIFFERENTIAL CALCULUSAS A METHOD FOR SOLVING ENGINEERPROBLEMS Journal article Angarsk Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University» 2025 1 с. Journal article local Математика. 51 Sverdlova Ol'ga Leonidovna Panov Leonid Alexeevich Khramtsova Arina Ivanovna angtu.editorum.ru