Keyboard Shortcuts

Key Function
0-9Enter numbers
.Enter decimal point
+ - * /Enter operators
Enter or =Calculate result
EscapeClear all
BackspaceDelete character
( )Enter parentheses
^Enter power operator
!Enter factorial
%Enter percent

Input Tips

Tip 1: Type function names directly

You can type function names using your keyboard:

  • sin, cos, tan
  • asin, acos, atan
  • log, ln, sqrt
  • abs, exp

Example: Type sin(30) directly

Tip 2: Enter constants

Type constant names directly:

  • pi or PI - Pi (π)
  • e or E - Euler's number
Tip 3: Copy and paste

Standard copy/paste operations are supported:

  • Ctrl+C / Cmd+C - Copy selected
  • Ctrl+V / Cmd+V - Paste
  • Ctrl+A / Cmd+A - Select all
  • Ctrl+X / Cmd+X - Cut

Copy expressions from other sources and paste them into the calculator

Tip 4: Cursor movement and selection
  • - Move cursor
  • Home - Move to beginning
  • End - Move to end
  • Shift + Arrow keys - Select text
Tip 5: History reuse

Click any history entry to fill the input box with that expression.

This allows quick modification and recalculation of previous expressions.

Expression Format Examples

// Basic operations
2 + 3 * 4
(2 + 3) * 4

// Scientific calculations
sin(30) + cos(60)
log(100) * 2
sqrt(16) + 2^3

// Compound expressions
2 * pi * 5
e^2 + ln(e)

// Advanced operations
5! + 3^2
abs(-5) * sqrt(25)

Important Notes

  1. Function names are case-insensitive: sin and SIN work the same
  2. Spaces are allowed and automatically ignored
  3. Thousand separators (commas) are supported, e.g., 1,000,000
  4. Scientific notation: 1e10 or 1E10 means 10¹⁰