Scientific Calculator
This scientific calculator supports a full range of mathematical functions: trigonometry (sin, cos, tan and their inverses), logarithms (log base 10 and natural log ln), exponential functions (eˣ, 10ˣ), powers (xⁿ), square root, factorial (n!), constants π and e, and parentheses for complex expressions. Switch between degree and radian mode using the DEG/RAD toggle. The calculator builds expressions step by step and shows them as you type, evaluating when you press =.
Frequently Asked Questions
How do I use trigonometric functions?
Press sin, cos, or tan, then type the angle value, then close with ). For example, sin(30) in DEG mode returns 0.5. Switch between degrees and radians using the DEG/RAD toggle at bottom left.
What is the difference between log and ln?
log calculates the base-10 logarithm (log₁₀), while ln calculates the natural logarithm (base e ≈ 2.718). For example, log(100) = 2 and ln(e) = 1. Use log for decibels, pH, and decades; use ln for continuous growth and decay.
How do I enter powers (xⁿ)?
Type the base number, press the xⁿ button (which inserts ^), then type the exponent. For example: 2 ^ 10 = 1024. You can also use x² to quickly square a number.
How does factorial (n!) work?
Press n!, type the number, then close with ). For example: fact(5) = 120 (because 5! = 5×4×3×2×1 = 120). Factorial is only defined for non-negative integers up to 170.
Can I use π in expressions?
Yes. Press the π button to insert the constant π (≈ 3.14159265358979). You can use it in any expression, for example: 2 × π calculates the circumference factor, or sin(π/2) = 1 in radian mode.