https://www.zhihu.com/question/668139556
https://www.zhihu.com/question/552557374
arc是反三角函数的意思，它不是三角函数哈 反三角函数是一种基本初等函数。它是反正弦arcsin x，反余弦arccos x，反正切arctan x，反余切ar
https://www.zhihu.com/question/37163207
在 @王大锤 的提点下，去搜索了英文维基，果然有解释。 Etymology of the arc- prefix When measuring in radians, an angle of θ radians will correspond to an arc
https://www.zhihu.com/tardis/bd/art/17908221819
https://www.zhihu.com/question/557521647
https://thebrowser.company/ 这浏览器锁伊朗和国区。 因为启动要先检测网络，所以国内是用不了的。（偶尔能打开，但绝大部分时候无法启动
https://www.zhihu.com/question/545826349
https://www.zhihu.com/question/652130985
Apr 7, 2024 · 据说好像可以玩玩低画质3A？翻了好多帖子真正说到这个显卡的好像只有一篇...
https://www.zhihu.com/question/12830986179
Feb 20, 2025 · 更新一下：英特尔下一代移动端Panther Lake马上要发布了。这一代配备的核显是Arc B300系列，最强的B390据说能和移动端的3050差
https://www.avsforum.com/threads/arc-vs-earc-should-i-make-the-upgrade-solved.3293797/
Jan 28, 2024 · So I have an eARC TV (SONY 83A90J OLED), but my AVR is only ARC (DENON X4200W.) eARC didn't become a thing until a few years ago in the DENON models. My question is
https://www.zhihu.com/question/433593655
Dec 6, 2020 · arc (Arc)是弧的意思，表示求三角函数值所对应的 弧度。Arc是所有对应的弧度，arc特指主值区间内的弧度，因此Arcsinx等是多值