The adjacent side (\(a\)) is next to the angle in question (\(x\)). The trigonometric ratios for the angles 30°, 45° and 60° can be calculated using two special triangles. An equilateral ...

The adjacent side (\(a\)) is next to the angle in question (\(x\)). The trigonometric ratios for the angles 30°, 45° and 60° can be calculated using two special triangles. An equilateral ...

现在两个高中生提出了多种三角学证明勾股定理的方法，确实让人眼前一亮。毕竟早在1927年，数学家Elisha Loomis就曾断言道：使用三角学的规则无法完成对勾股定理的证明。

"There are no trigonometric proofs because all the fundamental formulae of trigonometry are themselves based upon the truth ...

Two young mathematicians, Calcea Johnson and Ne'Kiya Jackson, made headlines with a groundbreaking discovery in mathematics.

High school students Calcea Johnson and Ne'Kiya Jackson did something in 2023 that most mathematicians had thought impossible ...

That was my immediate reaction to Forever Notes, a systematic approach to note-taking that uses Apple Notes as its foundation. Forever Notes’ author, Matthias Hilse, describes the system as follows: ...

Apple's Calculator app does more than help you calculate tips. With the latest OSes, it launches on iPad and lets you create ...

You'll want to be a little picky if you're into taking handwritten notes, though, since some support styluses better than others, and some don't support them at all. A handful of writing-focused ...

You agree that we have the right to remove any post without notice. You agree that we have the right to suspend your account without notice. Please note some users may not behave properly and may post ...

Here we’re going to focus specifically on what's new in Notes, as a case in point. Like Mail, Maps, Messages, Safari, and other apps, Notes is getting some major improvements to give you even ...

This week, learn what life was like aboard a Tudor warship, meet the rats fighting wildlife trafficking, spy supernova ...