difference quotient method

基本解释

According to the optimization example of one space truss of a gymnasium, the efficiency and the feasibility of the difference-quotient-method is proved.
通过对某体育馆网架结构的优化设计示例，证明了本优化设计方法的有效性和可行性。
On the basis of Newton method, Secant Method used the difference quotient instead of calculating the value of derivative. his thesis derives improvements of Newton method.
弦截法在牛顿法的基础上，利用差商来回避导数值的计算。本文推导了牛顿迭代法的各种改进方法。
Through the suitable selection of difference quotient and correction of the one-dimension inaccuracy linear searching, scope of the improved method is extended.
从应用角度出发，首先，将约束变尺度法改进为一般约束条件，通过适当选择差商形式和对一维不精确线性搜索方法的修正，扩大了该方法的适用范围。