AlevelPhysicsCalculator

iOS Universel / Education

我是一名 Alevel 物理教师。这款 Alevel 物理计算器 App 的设计和建造，是为学习国际物理课程的高中学生使用。同时它也很适用于生活中的一般计算。

计算器特点：
1 App 里没有任何广告，也没有任何第三方插件，使用时不会被打搅。

2 该计算器里，设置有常用的物理常数按键，譬如 elementary charge 和 gravitational constant 等。学生可以直接点击用于计算，无需自己再一个个数字点击输入，避免输错，提高效率。计算器里的这些常数，同于 9702 alevel 物理考试往年试卷中的前页出现的常数。

3 该计算器最多可以显示最近20个已经计算过的公式和结果。使用者可以通过点击其中任何一个公式，在此使用或更改该公式计算。

4 按键设计尽可能少而简单，即满足 alevel 物理学生使用，也避免计算器过于复杂，不至于花时间寻找某一特定按键，方便使用。

5 使用者可以按书写顺序输入计算公式，计算器会识别计算顺序，方便操作。

I am a school physics teacher. The App of Alevel Physics Calculator is specifically designed for sixth-form students who are taking Alevel physics. It is also suitable for IB, AP, etc. physics students. You may also find it convenient to use for most cases in our daily lives like calculating your total spending when go shopping, etc.

Features:
1 No built-in advertisements or third-party plugins of any kind. It is just a nice clean calculator panel where you do your calculations straightaway.

2 A keypad of Physical Constants is built on the calculator. A set of frequently used constants, such as elementary charge and gravitational constant, which are the same as the ones shown on the 9702 alevel physics exam past papers, are able to be accessed directly for calculation by pressing the key of each constant. It saves the students the hassle of, and possibly the errors from, having to type each numerical figure when a constant needs to be used, and thus it is likely to increase the speed and efficiency for students to deal with their calculations.

3 The calculator is able to show a maximum of 20 latest equations of calculation that have been processed so as for users to review. It also allows the user to modify or reuse any of the latest 20 calculations by simply tapping the one they need on display.

4 It is designed to have least amount of built-in operators but as much as sufficient for alevel physics student to use. It saves the students the hassle of using shift key, which is conventionally built on most over-complicated scientific calculators, to switch between different panels to find out an operator.

5 It allows the equation of calculation to be typed in its natural/written order. The calculator is able to determine which operation goes first.