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Scientific Calculator

Full-featured scientific calculator with trigonometry, logarithms, powers, roots, factorial, and memory. Supports degrees and radians.

Type with your keyboard. Press Enter to calculate.

How to Use

This scientific calculator works like a physical Casio or TI calculator. Enter numbers, apply functions, and get instant results.

Supported Functions

Trig: sin, cos, tan

Inverse: sin-1, cos-1, tan-1

Log: log (base 10), ln (natural)

Powers: x^2, x^3, x^y

Roots: sqrt, cbrt

Other: n!, |x|, 1/x, %

Tips

Use DEG mode for everyday angle calculations (most common)
Use RAD mode for calculus and advanced math
Use M+ to accumulate running totals in memory
Use parentheses for complex expressions like sin(45) + cos(30)
Click history entries to reuse previous results

Understanding Scientific Notation Results

Very large or very small results display in scientific notation (e.g., 3.628e+6 means 3,628,000). The number after "e" tells you how many places to move the decimal point. For significant figures, this calculator maintains up to 15 digits of precision — standard for IEEE 754 double-precision floating-point arithmetic.

Practical Use Cases

Students: Homework, exam prep, verifying hand calculations for trig, logarithms, and combinatorics
Engineers: Quick unit conversions, signal calculations (dB = 10×log₁₀(P₁/P₂)), structural load formulas
Everyday trig: Calculate roof pitch angles, ladder lean angles, or distance measurements using sin/cos/tan
Finance: Compound interest with e^(rt), logarithmic growth calculations, probability factorials
Physics: Projectile motion angles, wave frequency calculations, exponential decay

Common Mistakes

Forgetting DEG vs RAD mode — sin(90) = 1 in DEG but sin(90) = 0.894 in RAD; always check the mode indicator
Order of operations errors — 2 + 3 × 4 = 14 (not 20); use parentheses when unsure: (2 + 3) × 4 = 20
Not closing parentheses — unclosed brackets cause unexpected results; match every "(" with a ")"
Confusing log and ln — log is base-10 (log(100) = 2), ln is base-e natural log (ln(e) = 1)
Overflow with factorials — n! grows extremely fast; 170! is the largest that fits in standard floating-point; 171! overflows to infinity

Frequently Asked Questions

What functions does this scientific calculator support?

Trigonometric (sin, cos, tan and their inverses), logarithmic (log base 10, natural log ln), exponential (e^x, 10^x), powers (x^2, x^3, x^y), roots (square root, cube root), factorial (n!), absolute value, reciprocal (1/x), and constants (pi, e).

Does it work in degrees or radians?

Both. Use the DEG/RAD toggle at the top to switch. DEG mode is default (angles entered as degrees). Switch to RAD for mathematical computations that require radians.

Can I use keyboard input?

The calculator uses on-screen buttons for reliable input. You can click or tap any button. The display shows your expression and result in real-time.

Does it have memory functions?

Yes. MC (memory clear), MR (memory recall), M+ (add to memory), M- (subtract from memory). The memory indicator shows the stored value. You can also use Ans to recall the last result.

Is there a calculation history?

Yes. Click the "History" button to see your last 20 calculations. Click any history entry to load that result back into the display.

Can it handle order of operations?

Yes. The calculator evaluates expressions using standard mathematical order of operations (PEMDAS/BODMAS). Use parentheses to group expressions as needed.