二十世纪四十年代可以认为是应用数学史上推陈出新时代的开端。在此以前,一提到应用数学往往容易使人联想到柯朗、希尔伯特(数学家的著作)和卡曼、毕尧(技术科学家的著作)等名著。这些著作的绝大部分内容属于数学分析的范畴。四十年代以后,情况不断变化。拉克斯提到一些新分支,并说这些分支的研究和教学都在运筹学系或计算机科学系中进 The 1940s can be considered the beginning of an era of innovation in applied mathematics. Previously, mention of applied mathematics was often reminiscent of Clohne, Hilbert (a book by mathematicians) and Kaman and Biyao (works of technical scientists). Most of these books belong to the category of mathematical analysis. After the forties, the situation is constantly changing. Laxt mentions a few new branches and says that the research and teaching of these branches are both in Operations Research or Computer Science