Calculator Pro - Free Online Standard & Scientific Tool
v1.0. Stable
Operating Instructions
1
Basic Math
Tap numbers and operators like a standard calculator.
2
Sci-Mode
Tap SCIENTIFIC MODE to reveal Sin, Cos, Tan, and Log keys.
3
History
Top line displays the current equation for verification.
Computation Data
Arithmetic:
150 * 0.20 = 30
Trigonometry:
sin(90) = 0.8939...
System Capabilities
Touch Optimized: Large buttons prevent mistypes.
Desktop Ready: Supports full keyboard number entry.