About Scientific Calculator
Scientific calculator computes online, supports basic ops/trig functions/logarithm/power/constants (π/e). Keyboard shortcuts, history, essential for daily and engineering calculations.
How to Use
- Click buttons or keyboard input
- Supports +−×÷ parentheses
- Scientific functions (sin/cos/log/sqrt etc)
- View calculation history
Frequently Asked Questions
- Trig functions use degrees or radians?
- Switchable. Degree mode (Deg) for daily use (e.g., 90°), radian mode (Rad) for math/programming (e.g., π/2). Toggle button usually top-left corner.
- How to enter scientific notation?
- Use E or e for power of 10. E.g., 1.23e5 = 1.23×10⁵ = 123000. Some calculators have ×10ˣ button.
- Calculator precision?
- Typically 15-17 significant digits (double-precision float). Beyond this, rounding errors occur. For financial calculations, use specialized tools to avoid float errors.