The function extremevalue is an important aspect that applied maths solves the practical problem.
摘要函数极值是应用数学解决实际问题的一个重要方面。
2
The condition of the existence of solution of functional extremevalueproblem applied to maximum thrust nozzle is also presented.
同时，还导出了最大推力喷管这个泛函极值问题解存在的条件。
3
The ordinary optimization algorithm can not solve the multi-extremevalueproblem in data assimilation, so an improvement to steepest descent algorithm is proposed to solve the problem.