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- Named as SDP-OPF, the proposed method involves reformulating the OPF problem into a SDP model, which is a convex problem, and developing an interior point method (IPM) for SDP. 该方法将非凸OPF问题等价转换为半定规划问题，然后应用原始-对偶内点法求解。
- The convexity of curves and surfaces is an important property in the field of Computer Aided Geometric Design (CAGD). This paper tries to tackle the positive and convex problem of polynomials. 在计算机辅助几何设计（CAGD）中;曲面曲线的凸性是一种重要的特性旨在解决多项式的正性和凸性问题.
- Solutions to the Calculational Complexity of Convex Problem by Reduction Theory 用归约原理求解凸壳问题的计算复杂性的研究
- I look at this problem from a different viewpoint. 我从不同的观点来看这个问题。
- She skirted round the problem of the high cost. 她避而不谈巨额费用问题。
- It may take a long time to find a solution to the problem. 也许要花很长时间才能找到解决这个问题的办法。
- In dealing with the problem he was cautious to an extreme. 他在处理这个问题时谨慎得过分了。
- A convex surface, body, part, or line. 凸面、凸面体、凸面部分或凸线
- The problem is how we are to get the raw material. 问题是我们怎样得到原材料。
- Heavy traffic poses a problem in many old towns. 交通拥挤是许多旧城镇的难题。
- The problem is quite plain to us. 那问题我们都很明白。
- They dealt with the problem in a purposeful way. 他们处理这问题很果断。
- A new problem has been reared up in production. 生产中出现了一个新问题。
- It was Susan who brought the problem to our notice. 是苏珊提醒我们注意那个问题的。
- I think this problem is very simple and clear cut. 我认为这个问题非常简单明白。
- He often came up against the problem of money. 他那时常常碰到钱的问题。
- Overpopulation is a universal problem. 人口过多是全球性的问题。
- Just as a double convex lens enlarges, so a double concave lens reduces. 正象双凸透镜可以放大那样，双凹透镜也可以缩小。
- The problem is considerably difficult to us. 对我们来说这个问题相当难。
- People think this problem determination. 人们认为这个问题解决了。
