Quick Start
- Enter an expression on the calculator page to preview results live.
- Tap equals to save a successful calculation to history.
- Use constants, history and bookmarks menus to load frequent content quickly.
- Use settings to adjust angle mode, precision, theme, language, haptics and sound.
Expression Tips
You can use parentheses, powers, percent, factorial, constants and common functions. Trigonometric functions depend on the current angle mode, and the graphing page shows the active angle mode.
Unit Conversion
Choose a category, enter a value, then choose source and target units. If the input is not a valid number, the result area displays a prompt.
Matrix and Statistics
For matrices, each line represents a row and columns can be separated by commas, semicolons or spaces. Statistics values can be separated by commas, spaces or new lines.
History, Bookmarks and Local Data
Successful calculations are written to history. Important records can be bookmarked, and local data can be cleared from history, bookmarks or settings. The app shows a confirmation prompt before clearing.
Troubleshooting
- If a result looks unexpected, check parentheses, angle mode, unit category and input range.
- If a graph is empty, check whether the function has valid values in the selected interval.
- If a matrix cannot be inverted, it may not be square or may be singular.
- If statistics output is empty, confirm every input token is a valid number.