Scientific Calculator
Free online scientific calculator with advanced functions like trigonometry, logarithms, powers, and roots. Supports degrees and radians.
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Calculator Tips
- Degrees vs Radians: Use DEG for standard geometry and RAD for calculus/trigonometry.
- Inverse Functions: Click 'Inv' to switch to sin⁻¹, cos⁻¹, tan⁻¹, eˣ, 10ˣ, and y√x.
- Scientific Notation: Use 'EXP' to enter large numbers (e.g., 5 EXP 6 = 5,000,000).
Frequently Asked Questions
- A scientific calculator handles advanced math beyond basic arithmetic. Use the Inv or Shift key for inverse functions, and ensure you are in the correct mode (Degrees or Radians) for trigonometry. Our online tool provides a clear interface for functions like roots, powers, and logs.
- Degrees (DEG) divide a circle into 360 units, while Radians (RAD) use the radius length (2π per circle). Most school math uses degrees, while calculus and advanced physics use radians. sin(90°) = 1, but sin(90 rad) ≈ 0.89.
- Enter the angle value and then press the sin, cos, or tan button. These functions calculate the ratios of sides in a right-angled triangle. For inverse functions (finding the angle from a ratio), use sin⁻¹, cos⁻¹, or tan⁻¹.
- Press the √ symbol followed by the number, or enter the number and then the root key depending on the calculator type. In our calculator, simply enter the number and click √. For other roots (like cube roots), use the xʸ function with 1/n.
- π (Pi) is approximately 3.14159, the ratio of a circle's circumference to its diameter. e (Euler's number) is approximately 2.71828, the base of natural logarithms. Both are fundamental constants in mathematics and science.
- log usually refers to base-10 logarithms, while ln is the natural logarithm (base e). Logarithms answer the question: 'To what power must the base be raised to get this number?' For example, log(100) = 2 because 10² = 100.
- Scientific notation expresses very large or small numbers as a power of 10. For example, 5,000,000 is 5 × 10⁶ (or 5e6 on a calculator). Use the EXP or e key to enter these values efficiently.
- Inverse functions (arcsin, arccos, arctan) find the angle that produces a specific ratio. On our calculator, click the Inv button to reveal these options. For example, Inv + sin(0.5) = 30°.
- M+ adds the current result to memory, M- subtracts it, and MR (Memory Recall) retrieves the saved value. MC (Memory Clear) wipes the stored value. This is useful for multi-step calculations without writing down intermediate steps.
- This is almost always due to the Deg/Rad setting. If you are in Radians mode, sin(90) will not be 1. Always check the display indicator for 'DEG' or 'RAD' before starting trigonometric calculations.