Schulrechner
The calculator you know from school
新版本 1.14.0
Feature: °′‴-button now switches to DMS format
Feature: Added option to toggle between Deg, Rad and Gra angle modes
Feature: Added Eng-button for engineering notation
Tweak: Updated dependencies
Feature: Added option to toggle between Deg, Rad and Gra angle modes
Feature: Added Eng-button for engineering notation
Tweak: Updated dependencies
This is a very early version in development.
Unlabeled buttons will be implemented in the future, and bugs may be frequent. If you experience issues or have feature requests, please file an issue (link below).
Frustrated by the lack of free, open-source scientific calculators that feel like the ones I am used to, I decided to reverse-engineer my old calculator from school.
With features like:
- input of complex equations,
- output as fractions as well as decimals,
- result storage and reuse,
- selection and editing of equations from input history,
- and support for implicit multiplication (like 5π instead of 5*π),
this calculator produces math that looks like the math on your paper. That makes it much more suitable for higher-level math in school and university—especially if you've grown accustomed to this kind of interface from a young age and just forgot your calculator at home.
Some additional features include:
- A well-established open-source math.js library as the math engine—so you’re not relying on some sketchy, hand-rolled math logic (just my sketchy hand-rolled input method 😛)
- A familiar, intuitive design
- 100% offline usability and fully open source
- Written entirely in HTML, JS, and CSS, which means:
+ inherently cross-platform and also available as a website and Flatpak
+ easy for other web developers to contribute
+ admittedly a bit heavy for a calculator. If you're interested in helping make a lighter version (Flutter, Kotlin, etc.), you're very welcome!
Unlabeled buttons will be implemented in the future, and bugs may be frequent. If you experience issues or have feature requests, please file an issue (link below).
Frustrated by the lack of free, open-source scientific calculators that feel like the ones I am used to, I decided to reverse-engineer my old calculator from school.
With features like:
- input of complex equations,
- output as fractions as well as decimals,
- result storage and reuse,
- selection and editing of equations from input history,
- and support for implicit multiplication (like 5π instead of 5*π),
this calculator produces math that looks like the math on your paper. That makes it much more suitable for higher-level math in school and university—especially if you've grown accustomed to this kind of interface from a young age and just forgot your calculator at home.
Some additional features include:
- A well-established open-source math.js library as the math engine—so you’re not relying on some sketchy, hand-rolled math logic (just my sketchy hand-rolled input method 😛)
- A familiar, intuitive design
- 100% offline usability and fully open source
- Written entirely in HTML, JS, and CSS, which means:
+ inherently cross-platform and also available as a website and Flatpak
+ easy for other web developers to contribute
+ admittedly a bit heavy for a calculator. If you're interested in helping make a lighter version (Flutter, Kotlin, etc.), you're very welcome!
捐助
版本
雖然在下方可選擇下載 APK 檔案，但要留意這樣的安裝方式將不會收到更新通知，是一種較不安全的下載方法。建議您先安裝 F-Droid 用戶端使用。
下載 F-Droid-
此版本需要 Android 7.0 或更高的版本。
此套件包由 F-Droid 構建和簽署，並保證與此原始碼 Tarball 保持一致。
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此版本需要 Android 7.0 或更高的版本。
此套件包由 F-Droid 構建和簽署，並保證與此原始碼 Tarball 保持一致。
-
此版本需要 Android 7.0 或更高的版本。
此套件包由 F-Droid 構建和簽署，並保證與此原始碼 Tarball 保持一致。
新版本 1.12.0
Feature: Added config option to prefer decimal results
Feature: Added mode menu
Feature: Added CMPLX mode and i
Feature: Added integration
Feature: Added differentiation
Feature: Added setup menu
Feature: Added Norm and Fix rounding setup modes
Feature: Added sexagesimal (hours, minutes, seconds) button
Bugfix: Eliminated rounding errors in trigonometric functions
Bugfix: Cube root of –1 now computes to –1
Tweak: Updated dependencies
Feature: Added mode menu
Feature: Added CMPLX mode and i
Feature: Added integration
Feature: Added differentiation
Feature: Added setup menu
Feature: Added Norm and Fix rounding setup modes
Feature: Added sexagesimal (hours, minutes, seconds) button
Bugfix: Eliminated rounding errors in trigonometric functions
Bugfix: Cube root of –1 now computes to –1
Tweak: Updated dependencies
新版本 1.11.0
Feature: Added (-) button
Feature: Added keyboard support for desktop version
Feature: Added hyperbolic functions
Tweak: "Renovate" integrated to ensure up-to-date dependencies
Tweak: Updated dependencies
Feature: Added keyboard support for desktop version
Feature: Added hyperbolic functions
Tweak: "Renovate" integrated to ensure up-to-date dependencies
Tweak: Updated dependencies