1·The extremal formula of binary quadratic functions is studied by using method of undetermined coefficients, substitution method and method of completing the square.
用特定系数法、换元法、配方法探求二元二次函数的极值公式。
2·The extremal spectrum density directions of components of wind wave spectrum types are different. This indicates that wave components of different frequencies have different principal directions.
不同波场类型的风浪方向谱各组成波的谱密度极值方向不同，表明不同频率的组成波有不同的主方向。
3·For the general hexagonal chains, the extremal problem of some important types of conjugated molecules have been solved previously.
对于一般的六角链，一些重要类型的共轭分子的极值问题已得到解决。
4·The use of genetic algorithms achieve about extremal function of problem solving, function has been give.
使用遗传算法实现关于函数极值问题的求解，函数已给出。
5·In this paper, the strong extremal principles have been proved for second or der linear elliptic equations on the domain which satisfies an interior cone condition.
本文对一般的二阶线性椭圆型方程，在满足内部锥条件时，证明了其强极值原理。