Scientific Calculator

How to use the Scientific Calculator

Layout

• Display: shows your expression and result.
• Mode: Deg/Rad toggle for trigonometry.
• History: recent results; tap a result to copy.
• Keys: numbers, operators, functions, memory.

Basics

1. Enter numbers and operators: + - * /
2. Use parentheses ( ) to group.
3. Press = to evaluate.
4. Back = delete last char, AC = clear all.

Trigonometry

• Select mode first: Deg for degrees, Rad for radians.
• Functions: sin cos tan asin acos atan
• Examples:
  • Deg: sin(30) → 0.5
  • Rad: sin(π) → 0

Constants

• π: press π to insert PI.
• e: press e to insert Euler’s number.

Powers & Roots

• Square: x² → inserts sq2( then your number, then )
• Cube: x³ → inserts cb3(
• Square root: √ → sqrt(
• Cube root: ∛ → cbrt(
• Any power: x^y → inserts pow( then type a,b) e.g. pow(2,8) → 256
• 10^x: 10^x or pow10(, e^x: e^x (or exp()

Logs

• Natural log: ln( (ln e = 1)
• Base-10 log: log(

Other functions

• Absolute value: |x| → abs(
• Reciprocal: 1/x → inserts 1/(
• Factorial: n! → fact(
• Random: rnd → random 0–1
• Min/Max: min(a,b) / max(a,b)
• Floor/Ceil: floor(x) / ceil(x)
• Hypotenuse: hyp(a,b) (e.g., hyp(3,4) → 5)

Note: Use the comma , key to separate function arguments, e.g., pow(2,8).

Percentage vs Modulo

• % and mod are remainder (modulo), e.g., 10 mod 3 → 1.
• “20% of 80” → type 0.2*80 → 16.

Memory and Ans

• MC clear, MR recall, M+ add, M- subtract.
• Ans inserts previous answer; chain calculations easily.

Sign and Arrows

• ± toggles sign: appends * (-1) to invert.
• Arrows ← → are placeholders (no cursor movement).

Keyboard shortcuts

• Numbers, + - * / ( ) , . work.
• Enter = equals, Backspace = Back, Escape = AC.

Quick examples

• π: π = → 3.1415926535…
• Deg: sin(180) = → 0
• Rad: tap Rad, cos(π) = → -1
• Power: x^y → type pow(2,8) = → 256
• Absolute: |x| → type abs(-5) = → 5
• Fraction: 1/x then 4 ) = → 0.25

If any specific key doesn’t behave as expected, tell me the exact button sequence you pressed.