四、仅靠正确的程序并不能求得合理的解强有力的现代化计算工具能很容易地变成一个数字垃圾的发生器。没有获得真正效用的原因并非由于在处理求解程序的步骤上的缺陷,而在某种意义上是由于分析和设计人员都缺乏认真和昂贵的计算选择适当设计参数的能力。这种计算上的缺陷就相当于在制造时对机床使用不得当。设想一个仅在制造精密部 Fourth, the correct procedure alone can not find a reasonable solution Powerful modern computing tools can easily become a digital garbage generator. The reason for not achieving true utility is not due to the shortcomings in the steps of the solver, but in a sense due to the ability of analysts and designers to choose the appropriate design parameters without a serious and expensive calculation. This calculation of defects is equivalent to the manufacture of the machine used improperly. Imagine a precision-machined part only