New 2-Meter Simplex Club - QRZ Forums
Oct 28, 2007 · Announcing The Simplex Experience - An Amateur Radio 2-Meter FM Direct Communications Association. Our goal is the creation and/or expansion of LOCAL...
Milwaukee Radiio Amateur's Club - MRAC FM Simplex contest is Sunday
The 2026 MRAC FM Simplex Contest is officially set for Sunday, February 22nd. This event is designed as a "Sprint"—lasting only three hours—making it the perfect opportunity to test your station’s …
为什么叫“单纯形“？这个名字有什么意义 - 知乎
Oct 11, 2013 · 单纯形 是二维的三角形，三维的四面体，在任意维度的推广。n-维单纯形是一个有 n+1 个顶点，n+1 个面 (facet) 的多面体。这个词译自英语 simplex，「单纯」其实意味着基本，因为他是组 …
Five Two Simplex Challenge starts now! | QRZ Forums
In an effort to promote 2m FM simplex, I've launched the Five Two Simplex Challenge. It's simple, just call on on 146.52 MHz FM for 52 days in the...
CQ Chit-Chat: How do we keep 2m Simplex alive?! | QRZ Forums
Oct 25, 2025 · Back on the 26th of September, 2025 I gathered fellow hamtubers and we discussed ideas and how to keep 2m Simplex alive and well!! I know that in some...
simplex - 知乎
cogitamus ergo sumus 回答数 325，获得 22,415 次赞同
如何直观理解Nelder–Mead（又名 downhill simplex）方法？
如何直观理解Nelder–Mead（又名 downhill simplex）方法？ 对于非线性的函数，希望从某个猜测的初始值开始找出它的最小值。 Nelder-Mead方法解决这种问题时的思路是怎样的？ 这种方法的收敛速度 …
线性规划问题的复杂度为多少？ - 知乎
我认为Simplex Algorithm的时间复杂度还是目前仍然正在研究的一个问题。 对于大多数选轴规则 (像决定哪些变量进入和离开的基本规则)，存在具有指数计算时间的线性程序的反例。 是否存在一个选轴规 …
HamRadioNow: Do NOT Call CQ on Repeaters - QRZ Forums
Apr 14, 2017 · 70+ frequencies in my 2m radio memory in the shack, including 5 simplex ones. Sometimes while chasing HF I will have the radio on scan, it may go 3 hours and only hear an …
用网络单纯形法(network simplex)解最小费用最大流(mincost)问题
Nov 17, 2019 · 该算法的原理来自线性规划，笔者还有没搞懂的地方，这里只谈实现。后面会给出完整的C++代码。 前提假设与问题点总结事先有所了解的看官可以略过此小节。 如果一个节点是某些链 …