00729naa#a2200205#i#450# EN\\bibl\64185 /en/manage/index 20250828110334.4 2686-9896 20230504b2023####ek#y0engy0150####ca RU APPLICATION OF A DERIVATIVE FUNCTION IN SOLUTION OPTIMIZATION PROBLEM Journal article Angarsk Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University» 2023 1 с. Journal article local Анализ. 517 Sverdlova Ol'ga Leonidovna Kondrat'eva Larisa Mihaylovna Davidyuk Vera Vladimirivna fht.editorum.ru /en/manage/index