Scientific Calculator
Perform advanced mathematical calculations with our full-featured scientific calculator. Supports trigonometric functions, logarithms, exponentials, factorials, percentages, memory operations, and more, all with a clean, intuitive interface.
📜 History
What Is a Scientific Calculator?
A scientific calculator is an advanced mathematical tool that goes beyond basic arithmetic to perform complex calculations including trigonometric functions, logarithms, exponentials, factorials, and more. It's an essential tool for students, engineers, scientists, and professionals who need to solve advanced mathematical problems.
Our online scientific calculator provides all the functionality of a physical scientific calculator with the convenience of being accessible from any device with a web browser. It includes memory functions, angle mode switching (degrees/radians), inverse functions, hyperbolic functions, and a calculation history.
How Does the Scientific Calculator Work?
The calculator uses JavaScript's Math library to perform calculations. Here are some key functions:
Trigonometry: sin(x), cos(x), tan(x) — with DEG/RAD mode support
Inverse Trig: sin⁻¹(x), cos⁻¹(x), tan⁻¹(x)
Logarithms: log₁₀(x), ln(x)
Exponentials: eˣ, 10ˣ, xʸ
Powers & Roots: x², x³, √x, xʸ
Factorial: n! (for non-negative integers)
Constants: π (pi), e (Euler's number)
Memory: MC (clear), MR (recall), M+ (add), M− (subtract)
The calculator evaluates expressions using standard order of operations and provides results with high precision.
Why Use This Scientific Calculator?
- Full Featured: All standard scientific functions including trig, log, exp, factorial, and more.
- DEG/RAD Mode: Switch between degrees and radians for trigonometric calculations.
- Memory Functions: Store, recall, add, and subtract values from memory.
- History: View and reuse your calculation history.
- Free & Easy: No registration, no fees, accessible from any device.
- Mobile-Friendly: Optimized for desktop, tablet, and smartphone use.
Common Scientific Calculations
- Trigonometric Functions: sin(30°) = 0.5, cos(π/3) = 0.5, tan(45°) = 1
- Logarithms: log₁₀(100) = 2, ln(e) = 1
- Exponentials: e¹ = 2.718..., 10² = 100
- Factorials: 5! = 120, 0! = 1
- Powers: 2⁵ = 32, √9 = 3
- Constants: π ≈ 3.14159, e ≈ 2.71828
❓ Scientific Calculator FAQ
What is the difference between a basic and scientific calculator?
A basic calculator can perform arithmetic operations (addition, subtraction, multiplication, division). A scientific calculator adds advanced functions like trigonometry, logarithms, exponentials, factorials, and support for parentheses and order of operations.
What does the DEG/RAD mode do?
DEG (degrees) and RAD (radians) are two units for measuring angles. DEG is used in everyday applications (e.g., 90° for a right angle). RAD is used in calculus and many scientific applications (e.g., π/2 for a right angle). Switch modes as needed for your calculations.
What is the INV (inverse) button for?
The INV button toggles inverse functions. For example, with INV on, sin becomes sin⁻¹ (arcsine), cos becomes cos⁻¹ (arccosine), and tan becomes tan⁻¹ (arctangent). This allows you to find the angle from a ratio.
What does the HYP (hyperbolic) button do?
HYP enables hyperbolic functions: sinh (hyperbolic sine), cosh (hyperbolic cosine), and tanh (hyperbolic tangent). These are used in advanced mathematics, physics, and engineering applications.
How do I use memory functions?
MC (Memory Clear) clears the memory. MR (Memory Recall) displays the stored value. M+ adds the current display value to memory. M− subtracts the current display value from memory.
What is the factorial function?
Factorial (n!) is the product of all positive integers from 1 to n. For example, 5! = 5 × 4 × 3 × 2 × 1 = 120. The factorial of 0 is defined as 1. It's used in combinatorics, probability, and many mathematical formulas.
What is the difference between log and ln?
log is the common logarithm (base 10). For example, log₁₀(100) = 2. ln is the natural logarithm (base e ≈ 2.71828). For example, ln(e) = 1. Natural logarithms are used extensively in calculus and the natural sciences.
What is the EE button for?
The EE (Enter Exponent) button is used for scientific notation. For example, 1.5 EE 3 means 1.5 × 10³ = 1500. It's commonly used in physics, chemistry, and engineering to handle very large or very small numbers.
How do I calculate the square root?
Press the √ (square root) button, then enter the number and press = . Or enter the number first, then press √. For example, √9 = 3.
How do I calculate powers and exponents?
Use the x² button for squaring, x³ for cubing, or xʸ for any power. For xʸ, enter the base, press xʸ, enter the exponent, and press =. For example, 2 xʸ 3 = 8.
What is the order of operations?
The calculator follows PEMDAS: Parentheses, Exponents, Multiplication and Division (left to right), Addition and Subtraction (left to right). For example, 2 + 3 × 4 = 14 (not 20), because multiplication comes before addition.
What are hyperbolic functions used for?
Hyperbolic functions (sinh, cosh, tanh) are analogs of trigonometric functions but for hyperbolas instead of circles. They appear in many areas of mathematics and physics, including special relativity, heat transfer, and wave equations.
How do I use the percentage function?
The % button computes percentages. For example, 200 % 10 = 20 (200 × 10%), or 200 + 10% = 220. It can also be used for percentage increase/decrease calculations.
What is the RND (random) button?
The RND button generates a random number between 0 and 1. This is useful for statistical simulations, random sampling, and probability exercises.
How accurate is this scientific calculator?
This calculator uses JavaScript's double-precision floating-point arithmetic, which provides about 15-16 significant digits of accuracy. Results are displayed with up to 10 decimal places for precision.
Can I use this calculator for calculus?
Yes, this calculator supports many functions used in calculus: exponentials, logarithms, trigonometric functions, and their inverses. However, for symbolic calculus (derivatives and integrals), you'll need a computer algebra system.
What is Euler's number (e)?
Euler's number (e ≈ 2.71828) is a mathematical constant that is the base of the natural logarithm. It appears in many areas of mathematics, including calculus, complex analysis, and probability theory.
How do I calculate trigonometric functions in radians?
Switch the angle mode to RAD using the radio buttons above the calculator. Then enter your angle in radians (e.g., π/2 ≈ 1.5708) and press sin, cos, or tan.
How do I view my calculation history?
Click the "History" heading below the calculator to expand the history panel. Each entry shows the expression and result. Click on any history entry to reuse it in a new calculation.
Is this calculator suitable for exams?
While this calculator provides all the functions you'd expect from a scientific calculator, always check with your instructor or exam proctor about permitted calculator use. Some exams may restrict the use of online calculators.