a certificate are:
Metro-style apps have room to breathe. They’re not about the chrome, they’re about the content. […] For years, Windows was always about adding stuff. We added bars, and panes, and doodads, and widgets, and gadgets, and bars — and stuff everywhere. And that’s how we defined our U.I., based on what new widgets we added. Now, we’ve receded into the background, and the app is sitting out there on the stage.
，这一点在新收录的资料中也有详细论述
1 & x_n & x_n^2 & \dots & x_n^{n-1}。业内人士推荐新收录的资料作为进阶阅读
rounding in Oklab.