【摘要】 机械优化设计往往要用到反三角函数、对数及开方等数学运算，在优化过程中经常会遇到函数级算术运算错误或因其它原因出现低级数学运算错误而停机，使优化工作无法进行下去。本文对这类问题给出了相应的解决办法。更多还原

【Abstract】 In mechanical optimal design,inverse trigonometric function,logertithmic and extraction of root operation frequently are encounted in optimal process,function grade mathematics operation mistaken often is encounted,or because other reason arises elementry mathematics opertion error,calculation is breaken off,optimal work is unable to go on,This paper gives a appropriate method used to solve this kind of problem.更多还原