Math

Scientific Calculator: Complete Guide to All Functions and Operations

What is a Scientific Calculator?


A scientific calculator is an advanced calculator that can perform complex mathematical operations beyond basic arithmetic, including trigonometry, logarithms, exponents, and statistical functions.


Basic Operations


All scientific calculators support:

  • Addition (+), Subtraction (-), Multiplication (x), Division (/)
  • Parentheses for order of operations
  • Decimal and negative numbers

    • Trigonometric Functions


  • sin(x): Sine of angle x
  • cos(x): Cosine of angle x
  • tan(x): Tangent of angle x
  • Inverse functions: arcsin, arccos, arctan
  • Remember to check if your calculator is in degrees or radians mode!

    • Logarithmic Functions


  • log(x): Base-10 logarithm
  • ln(x): Natural logarithm (base e)
  • exp(x) or e^x: Exponential function

    • Powers and Roots


  • x^2: Square
  • x^n: Power of n
  • sqrt(x): Square root
  • nth root: x^(1/n)

    • Order of Operations (PEMDAS)


    1. Parentheses

    2. Exponents

    3. Multiplication and Division (left to right)

    4. Addition and Subtraction (left to right)


    Common Constants


  • pi = 3.14159265...
  • e = 2.71828182...

    • Tips for Using Scientific Calculators


  • Always check degree vs radian mode for trig
  • Use parentheses to ensure correct order of operations
  • Use the memory functions (M+, MR, MC) for complex calculations
  • Double-check results by estimating mentally first

    • Try Our Online Scientific Calculator


    Use our free online scientific calculator with all advanced functions.

    Try Our Calculator

    Put this knowledge to use with our free online calculator.

    Open Calculator