CSFC is a free and open-source Android calculator built around one idea: order of operations isn't universal. Most calculator apps silently apply a single fixed convention and never tell you which one. CSFC instead lets you choose the system you were taught, and switch between them whenever you like.
Built and maintained by @jhaiian — a solo developer from the Philippines 🇵🇭
- PEMDAS — Parentheses, Exponents, Multiplication, Division, Addition, Subtraction (United States)
- BEDMAS — Brackets, Exponents, Division, Multiplication, Addition, Subtraction (Canada and some other countries)
- BODMAS — Brackets, Orders, Division, Multiplication, Addition, Subtraction (UK, India, and many Commonwealth countries)
- BIDMAS — Brackets, Indices, Division, Multiplication, Addition, Subtraction (UK, Australia)
- PEDMAS — Parentheses, Exponents, Division, Multiplication, Addition, Subtraction (Some Canadian schools)
- GEMA — Grouping, Exponents, Multiplication/Division, Addition/Subtraction (Some math education materials)
- Android 8.0 (API 26) or higher
Download the latest APK from the Releases page.
Contributions, bug reports, and feature requests are welcome.
- Open an issue to report a bug or suggest a feature.
- Fork the repo and create a branch for your change.
- Submit a pull request with a clear description.
For more details, see Contributing.md.
The source code of this project is licensed under the GNU General Public License v3.0 (GPLv3).
The name "CSFC," the logo, screenshots, and all related branding assets are trademarks or proprietary assets of the author and are not licensed under the GPL. Use of these assets requires explicit permission from the author.