Triangle Maths
教育
免费 · 专为 iPad 设计。未针对 macOS 验证。
Drag three points and watch the geometry follow.
Triangle Maths draws a triangle from three points you move with your finger, together with the circle through all three corners, the circle that fits inside it, and the three angle bisectors. Nothing is fixed: move a point and every line, circle and number is worked out again.
WHAT IT SHOWS
• The circumcircle, the one circle through P, Q and R, and its centre O.
• The incircle, the largest circle that fits inside the triangle, and its centre I where the three angle bisectors meet.
• J, K and M, the points where the incircle touches each side.
• The angle at each corner, the three side lengths, the area, and both radii.
• Coordinates for every point, measured from the origin.
HOW YOU USE IT
• Drag P, Q and R anywhere on the plane.
• Or tick "Keep P, Q, R on one circle" and slide them around a single circle, the way the first version of this app worked.
• Zoom the plane in and out with the scale control.
• Turn coordinates, angle bisectors, perpendiculars and the grid on or off.
• Choose a theme: Paper, Dark or Blueprint.
• Put the three points in a line and see what happens: there is no circle through them, and the app says so rather than showing a number.
Everything is worked out on your iPhone. There is no account, no sign-in, no internet connection and no data collection of any kind, so it works in airplane mode.
Rebuilt from the ground up for modern iPhones, replacing the 2015 version.
评分及评论
- 此 App 尚未收到足够的评分或评论，无法显示整体评分。
Rebuilt from the ground up for modern iPhones.
• P, Q and R now move anywhere on the plane. The circle through them is worked out as you drag, rather than the points being pinned to a fixed circle.
• New readouts: circumcircle radius and circumcentre, alongside the area, incircle radius and touch points.
• Three themes: Paper, Dark and Blueprint.
• The numbers sit beside the figure instead of on top of it, and the layout fits any iPhone, upright or on its side.
• Bigger touch targets, and a drag that follows your finger exactly.
开发者“hirenkumar patel”已表明该 App 的隐私规范可能包括下述数据处理方式。更多相关信息，请参阅 开发者隐私政策 。
未收集数据
开发者不会从此 App 中收集任何数据。
辅助功能
开发者尚未表明此 App 支持哪些辅助功能。 进一步了解
信息
- 提供者
- hirenkumar patel
- 大小
- 49.6 MB
- 类别
- 教育
- 兼容性
设备需装有 iOS 15.0 或更高版本。
- iPhone
设备需装有 iOS 15.0 或更高版本。 - iPad
设备需装有 iPadOS 15.0 或更高版本。 - iPod touch
设备需装有 iOS 15.0 或更高版本。 - Mac
需要 macOS 12.0 或更高版本以及装有 Apple M1 或更高版本芯片的 Mac。 - Apple Vision
设备需装有 visionOS 1.0 或更高版本。
- iPhone
- 年龄分级
4+
- 4+
- 版权
- © @2015 Hirenkumar