Scientific Calculator
Advanced online scientific calculator with 150+ mathematical functions including trigonometry, logarithms, exponents, statistics, and memory functions.
Statistics Functions
Calculation History
Mathematical Constants
Quick Examples
What is a Scientific Calculator?
A scientific calculator is an electronic calculator designed to perform advanced mathematical, scientific, and engineering calculations. Unlike basic calculators that handle only arithmetic operations, scientific calculators include functions for trigonometry, logarithms, exponents, statistics, complex numbers, and more. They are essential tools for students, engineers, scientists, and professionals working in technical fields.
How to Use This Scientific Calculator
This online scientific calculator provides 150+ mathematical functions with a user-friendly interface similar to physical scientific calculators but with additional features and flexibility.
- Basic Operations: Use number buttons (0-9) and operation buttons (+, -, ×, ÷) for arithmetic calculations.
- Function Input: Click function buttons like sin, cos, tan, log, ln, etc. Functions automatically add parentheses for proper syntax.
- Memory Functions: Use MC (Memory Clear), MR (Memory Recall), M+ (Memory Add), M- (Memory Subtract), MS (Memory Store) for storing values.
- Angle Mode: Toggle between DEG (degrees) and RAD (radians) for trigonometric calculations using the DEG/RAD button.
- Advanced Functions: Click "Show Advanced Functions" to access hyperbolic functions, statistical functions, and more specialized operations.
- Quick Examples: Use the Quick Examples in the sidebar to see practical demonstrations of different calculations.
Why Use This Online Scientific Calculator?
This calculator offers significant advantages over traditional physical calculators and basic online calculators:
Advanced Features
150+ mathematical functions including trigonometry, logarithms, exponents, statistics, hyperbolic functions, and special operations not available on basic calculators.
Calculation History
Automatic tracking of all calculations with ability to review, copy, and reuse previous results. No more losing important intermediate steps.
Memory Functions
Multiple memory registers (M+, M-, MR, MC, MS) for storing intermediate results and complex multi-step calculations.
Accessibility
Available anytime, anywhere on any device with internet access. No need to carry a physical calculator or install software.
Who Should Use This Scientific Calculator?
| User Group | Common Uses | Key Features |
|---|---|---|
| Students | Homework, exams, STEM courses | Trigonometry, algebra, calculus functions |
| Engineers | Design calculations, analysis | Complex math, unit conversions, precision |
| Scientists | Research, data analysis | Statistical functions, logarithms, exponents |
| Finance Professionals | Investment analysis, interest calculations | Exponential functions, logarithms, statistics |
| Programmers | Algorithm design, graphics programming | Trigonometry, geometry, binary operations |
Key Mathematical Functions Available
Trigonometric Functions
sin(x), cos(x), tan(x)
Basic trigonometric functions
asin(x), acos(x), atan(x)
Inverse trigonometric functions
sinh(x), cosh(x), tanh(x)
Hyperbolic trigonometric functions
Logarithmic & Exponential Functions
log(x) or ln(x)
Natural logarithm (base e)
log10(x)
Common logarithm (base 10)
e^x, 10^x
Exponential functions
Statistical Functions
mean(a,b,c...)
Arithmetic mean
median(a,b,c...)
Median value
std(a,b,c...)
Standard deviation
var(a,b,c...)
Variance
Frequently Asked Questions (FAQ)
What's the difference between DEG and RAD modes?
DEG (degrees) mode uses 360 degrees in a full circle, while RAD (radians) mode uses 2π radians in a full circle. Trigonometric functions behave differently in each mode: sin(90) = 1 in DEG mode, but sin(π/2) = 1 in RAD mode. Most scientific calculations use radians, while many practical applications use degrees. Always check which mode your calculation requires.
How accurate are the calculations?
This calculator uses JavaScript's built-in Math library which provides double-precision floating-point arithmetic (approximately 15-17 decimal digits of precision). For most scientific and engineering purposes, this level of accuracy is sufficient. However, for extremely precise calculations or symbolic mathematics, specialized software may be required.
Can I use this calculator for exams?
While this calculator provides all the functions needed for exams, you should always check your institution's specific rules. Many exams allow online calculators, but some may require physical calculators only. This calculator is perfect for study, homework, and practice exams. For actual exams, verify with your instructor what tools are permitted.
How do I enter complex expressions?
You can enter complex expressions using parentheses for grouping. For example: "sin(30) + cos(45)" or "log(100) * sqrt(25)". The calculator follows standard mathematical order of operations (PEMDAS/BODMAS): Parentheses, Exponents, Multiplication/Division, Addition/Subtraction. Use parentheses to explicitly define the order you want.
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