线性规划

例句：

1. 1.The line of the road is straight as an arrow.
   这条路线直得像箭一样。
2. 2.The linear equation represents a straight line passing through two points.
   这个线性方程代表一条通过两个点的直线。
3. 3. Linear programming is a method used to solve optimization problems.
   线性规划是一种用于解决优化问题的方法。