HP 35s

HP 35s

The HP 35s offers a unique way to switch between RPN and algebraic entry-system logic and is completely programmable, or you can use some of over 100 built-in functions. The clear 2-line display with adjustable contrast allows not only easy entry but also browsing history of previous calculations.

HP 35s


  • Built-In Functions: 100+
  • Entry System: Algebraic (D.A.L.), RPN
  • Power Source: Battery (CR2032 × 2)
  • Dimensions and Weight: 152 × 82 × 18 mm, 125 g

Mathematical Functions

  • Fractions
  • Equation Solver (Newton)
  • System of Linear Equations
  • Matrix and Vector Calculations
  • Numeric Derivative and Integral
  • Complex Number Calculation


  • 1-Variable Statistics
  • 2-Variable Statistics
  • Regression Calculations
  • Mean, Standard Deviation
  • nCr, nPr, n!
  • Random Numbers

Number Systems

  • Number Systems: DEC, BIN, OCT, HEX, PEN
  • Logical Operation (AND, OR, NOT, NEG, XOR)


  • Multi-Line Playback
  • Last Answer Recall (ANS)
  • Memory Variables: 800

Notation and Decimal Places

  • FSE Display (SCI, FIX, ENG)

Trigonometric Functions

  • DEG/RAD/GRAD Modes
  • Sin, Cos, Tan and Inverses
  • Hyperbolic Functions
  • Sexagesimal and Decimal Conversions
  • Rectangular and Polar Coordinates Conversions

Scientific Functions

  • Metric Conversions
  • Physical Constants