Scientific Calculator Classic

Scientific Calculator Classic brings the feel of a real school & engineering calculator to your phone – the same keys, the same two-line LCD display and the same order of operations you use in class and in exams.

★ EVERYTHING A STUDENT OR ENGINEER NEEDS
• Trigonometry: sin, cos, tan and their inverses in Degrees, Radians or Grads
• Hyperbolic functions: sinh, cosh, tanh and inverses (hyp key)
• Logarithms & powers: log, ln, 10ˣ, eˣ, x², x³, xʸ, √, ∛, ˣ√, x⁻¹
• Fractions: enter a b/c, get exact fraction answers, switch to decimal or improper fraction (d/c)
• Degrees–minutes–seconds (° ′ ″) input and conversion
• Factorial x!, permutations nPr and combinations nCr
• Polar ↔ rectangular coordinates: Pol( and Rec(
• Percent calculations: 200 + 10% = 220
• Engineering notation (ENG) and scientific E-notation (EXP)
• Random numbers (Ran#), π and e constants, absolute value and rounding

★ WORKS LIKE A REAL CALCULATOR
• Natural algebraic order: 1 ÷ 2π, -2², 2sin(30) all give the right answer
• Two-line display shows your full expression above the result
• Edit anywhere with the cursor, insert or overwrite (INS)
• REPLAY ▲▼ – scroll back through previous calculations and edit them
• Ans key and automatic "Ans" when you continue from a result
• Variables A, B, C, D, E, F, X, Y and independent memory M (M+, M−, STO, RCL)
• Display modes: Fix (0–9 decimals), Sci (1–10 digits), Norm 1/2
• Clear error messages (Math ERROR, Syntax ERROR) – press ◀ ▶ to jump straight to the mistake

★ ACCURATE
Decimal arithmetic means 0.1 + 0.2 = 0.3, sin 180° = 0 and 1 ÷ 3 × 3 = 1 – no strange floating-point answers.

★ MADE FOR YOU
• Beautiful classic design with a realistic LCD and 3D keys
• Haptic key feedback and press-and-hold repeat for DEL and the cursor
• Your history, variables and settings are saved automatically
• Small, fast and works offline
• Supports hardware keyboards

Perfect for high school, college and university students, engineering, physics, chemistry and maths homework, exam practice, and anyone who prefers a classic scientific calculator to a plain phone calculator.

Free with a single, unobtrusive banner ad at the top of the screen.