Scientific Calculator | Advanced Math & Trigonometry

📖 How to Use This Scientific Calculator

Enter numbers - Click the number buttons or use your keyboard (0-9).

Select operations - Use basic operators (+, -, ×, ÷) or advanced functions (sin, cos, tan, log, ln, √).

Press = or Enter - Get the result instantly.

Use memory functions - M+ adds, M- subtracts, MR recalls, MC clears memory.

Toggle Rad/Deg - Switch between radians and degrees for trigonometric functions.

📐 Scientific Calculator Functions Explained

sin, cos, tan: Trigonometric functions (sine, cosine, tangent)
asin, acos, atan: Inverse trigonometric functions (arcsin, arccos, arctan)
ln: Natural logarithm (base e)
log: Base-10 logarithm
√: Square root
eˣ: Exponential function (e raised to power x)
x²: Square of the number
xʸ: Power function (x raised to y)
π: Pi constant (3.14159...)
e: Euler's number (2.71828...)
n!: Factorial (n × (n-1) × ... × 1)
%: Percentage (divide by 100)

📊 Radians vs Degrees

Trigonometric functions can be calculated in radians or degrees. Radians are the default mathematical unit (π rad = 180°). Use the DEG/RAD button to switch modes. Most advanced math uses radians, while everyday angle measurements use degrees.

💡 Memory Functions Explained

M+ (Memory Add): Adds current displayed value to memory
M- (Memory Subtract): Subtracts current displayed value from memory
MR (Memory Recall): Displays the stored memory value
MC (Memory Clear): Clears (resets) memory to zero

❓ Frequently Asked Questions (FAQ)

What is the difference between radians and degrees?

Radians and degrees are two units for measuring angles. A full circle is 360 degrees or 2π radians. Most mathematical calculations use radians by default. Our calculator lets you switch between both modes.

How do I calculate powers (exponents)?

Use the xʸ button. First enter the base number, then press xʸ, then enter the exponent, and press =. For squares, use the x² button for quick calculation.

What is the factorial function (n!)?

Factorial (n!) multiplies all positive integers from 1 to n. For example, 5! = 5 × 4 × 3 × 2 × 1 = 120. It's used in probability and combinatorics.

Can I use keyboard shortcuts?

Yes! Use number keys (0-9), operators (+, -, *, /), Enter for =, Backspace for delete, and Escape for clear. Parentheses keys are also supported.

What does the natural logarithm (ln) do?

Natural logarithm (ln) is the logarithm base e (approximately 2.71828). It answers the question: "What power must e be raised to get this number?"

Is this calculator suitable for exams?

This calculator is a great study tool and practice aid. However, check your exam rules - many tests require specific approved calculator models.