Scientific Calculator
Perform advanced mathematical calculations with our feature-rich online scientific calculator.
How to Use the Scientific Calculator
- Basic Input: Use the number keys (0-9) and basic operators (+, -, ×, ÷) to perform simple calculations.
- Advanced Functions: Click buttons like √ (square root), x² (square), or xʸ (power) to use them in your expressions.
- Trigonometry: While this version focuses on algebraic and logarithmic functions, advanced trigonometry can be found in dedicated tools. Here you can use constants like π and e.
- Logarithms: Use log for base-10 logarithm and ln for natural logarithm.
- Using Parentheses: Use ( and ) to group operations and control the order of evaluation.
- 2nd Functions: Click the 2nd button to access alternate functions. For example, x² becomes x³, and √ becomes ³√ (cube root).
- Calculate: Press the = button to evaluate your expression. The full expression is shown above the result.
- Clear & Correct: Use C to clear the entire calculation, or the ← (backspace) button to remove the last character entered.
About Our Free Scientific Calculator
Whether you're a student tackling complex math problems, an engineer performing technical calculations, or a scientist analyzing data, a reliable scientific calculator is an indispensable tool. Our online scientific calculator provides a powerful, user-friendly interface right in your browser, eliminating the need for a physical device or clunky software.
This calculator goes beyond basic arithmetic, offering a wide range of functions including logarithms, powers, roots, factorials, and access to mathematical constants like Pi (π) and Euler's number (e). The "2nd" function key doubles the capabilities, providing access to inverse and alternative functions like cube roots and powers of 2. All calculations are performed instantly and securely on your device, ensuring your data remains private. Optimize your workflow and solve complex problems with precision and speed.
Frequently Asked Questions (FAQ)
How does the "2nd" button work?
The "2nd" button acts as a shift key, modifying the function of other buttons. When activated, it changes certain keys to their secondary function. For example, 'x²' becomes 'x³', '√' becomes '³√', 'log' becomes '2ˣ', and 'ln' becomes 'eˣ'. This effectively doubles the number of available functions without cluttering the interface.
What's the difference between 'log' and 'ln'?
Both are logarithmic functions, but they use different bases. 'log' refers to the common logarithm, which has a base of 10 (log₁₀). It answers the question, "10 to what power gives this number?". 'ln' refers to the natural logarithm, which uses Euler's number (e ≈ 2.718) as its base (logₑ). Natural logarithms are fundamental in calculus, physics, and financial modeling.
Are my calculations private?
Absolutely. Like all tools on IT Tools, this calculator operates entirely within your web browser. No calculation data, expressions, or results are ever sent to our servers. Your work is completely private and secure on your own device.