Circles and Equations
The tutor in your pocket.
HK$ 8.00
7.3for iPhone, iPad
Age Rating
Circles and Equations 螢幕截圖
About Circles and Equations
A power learning aid combines Coaching Calculator, Practice and Guide to help students master finding the center and radius of a circle by completing the square.
Develop skills with the Coaching Calculator as you find the center and radius of a circle step by step,
- Taking constant term to right hand side
- Grouping x-related and y-related terms
- Completing the squares
- Writing in center-radius form
or go straight to a particular step.
Check your progress with Practice as it presents you with circle equations from simple to more difficult.
Reference the Guide as it features step-by-step examples of circle equations where the coefficient of x² is one and not equal to one.
Applications include finding the equation of a tangent line at a a given point on a circle and determining if a given point is inside a circle.
Develop skills with the Coaching Calculator as you find the center and radius of a circle step by step,
- Taking constant term to right hand side
- Grouping x-related and y-related terms
- Completing the squares
- Writing in center-radius form
or go straight to a particular step.
Check your progress with Practice as it presents you with circle equations from simple to more difficult.
Reference the Guide as it features step-by-step examples of circle equations where the coefficient of x² is one and not equal to one.
Applications include finding the equation of a tangent line at a a given point on a circle and determining if a given point is inside a circle.
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最新版本7.3更新日誌
Last updated on 2024年04月09日
歷史版本
This version contains minor bug fixes.
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Version History
7.3
2024年04月09日
This version contains minor bug fixes.
7.2
2024年04月01日
iOS 17 compatibility and minor bug fixes.
7.1
2022年12月11日
This version has minor bug fixes.
7.0
2022年09月14日
This version has iOS 16 compatibility and minor bug fixes.
6.9
2021年11月05日
iOS 15 compatibility and user interface improvements. Minor bug fixes.
6.8
2021年06月08日
New practice option and enhanced user interface.
6.7
2020年01月23日
Minor bug fixes and enhancements.
6.6
2020年01月15日
Minor bug fixes and app streamlining. Secondary modules are moving to free apps for you to GET if you wish.
6.5
2019年09月26日
Dark mode bug fixes.
6.4
2019年09月25日
iOS 13 and iPadOS compatibility.
6.3
2019年01月21日
Major revision with streamlined user interface. Minor bug fixes.
6.2
2018年09月21日
Universal iPhone and iPad app. iOS 12 compatibility,
6.1
2017年11月01日
iPhone X and iOS 11 optimization and minor bug fixes.
6.0
2016年09月16日
iOS 10 compatibility and bug fixes.
5.1
2015年09月26日
iOS 9 compatibility and bug fixes.
5.0
2015年04月03日
Improved Guides for iPhone 6 and iPhone 6 Plus and minor bug fixes.
4.0
2013年09月26日
iOS 7 version.
3.2
2013年02月15日
iPhone 5 optimization and minor bug fixes.
3.1
2012年09月26日
iOS 6 and iPhone 5 compatibility.
3.0
2012年08月11日
Coaching Calculator for finding center and radius. New compact design.
2.2
2011年01月08日
Minor bug fixes.
2.1
2010年12月17日
Minor bug fixes and layout changes.
2.0
2010年11月02日
New menu system. Minor bug fixes.
1.5
2010年07月09日
iOS 4 compatibility. Minor bug fix.
1.4
2009年03月26日
New example of finding the equation of a tangent line.
Circles and Equations FAQ
點擊此處瞭解如何在受限國家或地區下載Circles and Equations。
以下為Circles and Equations的最低配置要求。
iPhone
須使用 iOS 16.0 或以上版本。
iPad
須使用 iPadOS 16.0 或以上版本。
Circles and Equations支持英文