Advertisement

Online Scientific Calculator

A powerful, free tool for all your advanced mathematical needs.

🏠⚽

How to Use

⌨️ Basic Controls

  • SHIFT: Access yellow functions above buttons.
  • ALPHA: Access red functions/variables (A, B, X, Y).
  • REPLAY: Use arrows to move cursor or navigate history.
  • S⇔D: Toggle between fraction and decimal results.
  • ×10ˣ: Enter scientific notation (e.g., 5 ×10ˣ 3 = 5,000).
  • MODE: Press to toggle between Degree and Radian angle units.
  • SCI: Press SHIFT + MODE to toggle scientific notation on/off.
  • DMS: Use .,,, to enter Degrees/Minutes/Seconds or toggle result formats.
  • Pi (π): Type pi or use the π button (SHIFT + ×10ˣ) to calculate with π ≈ 3.14159...

📊 Statistics & Probability

  • Enter Mode: Press SHIFT + 1 (STAT).
  • Edit Data: Click cells or use arrows; type numbers and press =.
  • Add Rows: Press = on the last row to add a new one automatically.
  • Toggle Frequency: Click the "Freq" header in the table.
  • Live Results: Mean (x̅) and Std Dev (σ) update instantly.
  • Clear Stat: Press SHIFT + 9 (CLR) while in Stat Mode.
  • RanInt: RanInt(20) gives a random whole number from 0 to 19.
  • Ran#: Ran# generates a random decimal between 0 and 1.

🧮 Advanced Mathematics (1/2)

  • GCD/LCM: Find greatest common divisors and least common multiples.
  • Pol/Rec: Convert between Polar and Rectangular coordinates.
  • Example: Pol(3, 4) gives distance/angle. Rec(5, 53.1) gives X/Y.
  • Quadratic: Type solve(a, b, c) to find roots for ax² + bx + c = 0.

🧮 Advanced Mathematics (2/2)

  • Calculus: Use ∫(f(X), a, b) for integration and diff(f(X), a) for derivative.
  • Rnd: Round numbers. Rnd(1.2345, 1) rounds to 1 decimal place.
  • Complex: Press ALPHA + 2 (CMPLX) for the menu (Arg, Conj, Re, Im).
  • Polar Angle (∠): Press SHIFT + (-) for ∠ (e.g., 5∠45).
  • Summation (Σ): Use Σ(f(X), start, end) to sum an expression using the variable X (e.g., Σ(X^2, 1, 5)).

💾 Memory & Variables

  • M+: Add the result to memory. Shows new total on screen.
  • M-: Subtract result from memory (Press SHIFT + M+).
  • Store (STO): Press STO then a variable key (A-F, X, Y, M) to save.
  • View (RCL): Press SHIFT + STO (RCL) then a variable key to view value.
  • Use Variable: Press ALPHA followed by a variable key to use it in math.
  • CALC: Evaluate expressions like A + B. Press SHIFT + CALC to input values.
  • Reset All: Press SHIFT + 9 (CLR) to clear all memory and variables.
  • Ans: Press Ans to use the result of the last calculation.

🔄 Conversions & Bases

  • Usage: Press SHIFT + 8 (CONV) then enter a 2-digit code.
  • Length/Dist: 01: in▶cm, 02: cm▶in, 07: mil▶km, 08: km▶mil.
  • Weight: 23: lb▶kg, 24: kg▶lb.
  • Temp: 37: °F▶°C, 38: °C▶°F.
  • Speed: 19: km/h▶m/s, 20: m/s▶km/h.
  • Base-N: Press ALPHA + 3 (BASE) to convert result to Dec, Hex, Bin, or Oct.

🧪 Science Constants

  • Usage: Press SHIFT + 7 (CONST) then enter a 2-digit code.
  • Mass: 01: mp (Proton), 02: mn (Neutron), 03: me (Electron).
  • Physics: 06: h (Planck), 28: c (Speed of light).
  • Gravity: 39: G (Gravitational), 40: g (Standard Gravity).
  • Chemistry: 27: R (Molar gas constant).

📟 LCD Status Indicators

  • S (Shift): Yellow functions are currently active.
  • A (Alpha): Red variables/functions are currently active.
  • STO/RCL: Store or Recall mode is currently active.
  • M: Independent memory currently contains a value.
  • SCI: Scientific notation mode is active for results.
  • D: Degree mode (standard angle units).
  • R: Radian mode (advanced angle units).
  • FIX: Fixed decimal place mode is active.
Free Online Scientific Calculator | SealMath