Calqora: Scientific Calculator

Calqora brings the calculations you need at school, at work and in the field together in one scientific calculator. Type an expression the way you would write it on paper: the root sign stretches over everything under it, and the result appears while you type.

🧮 CALCULATE
• Trigonometric and hyperbolic functions, logarithms, powers and roots; DEG, RAD and GRAD angle units.
• Factorial, combinations, permutations, GCD, LCM, modulo, rounding and the gamma function.
• Sum (Σ), product, numerical derivative, definite integral and equation solving.
• See a result as a fraction, a mixed number or degrees-minutes-seconds.
• Norm, Fix, Sci and Eng number formats with the number of digits you choose; dot or comma as the decimal separator.
• Ans, M+ / M− / MR memory and the variables A, B, C, D, X, Y; a history of the last 100 calculations.

📈 GRAPHS
• Plot four functions at once; pan with a finger, pinch to zoom.
• Trace along a curve and read the value at every point.
• Find roots, minima and maxima, and where two curves intersect, within the visible range.

ℂ COMPLEX NUMBERS
• With complex mode on, √(−4) = 2i; a+bi or r∠θ display.
• re, im, conj, arg, and all the basic functions on complex numbers.

▦ MATRICES
• Matrices A, B and C (up to 5×5); cells accept expressions such as 1/3 or √(2).
• Add, subtract, multiply, inverse, transpose, power, determinant, rank, trace, row reduction (rref), eigenvalues, and solving linear systems with X⁻¹·Y.

⇄ UNITS AND CONSTANTS
• 140 units in 15 categories: length, area, volume, mass, density, time, speed, force, pressure and stress, energy, power, temperature, angle, frequency, data.
• Enter one value and see it in every unit of the category at once.
• 46 constants from mathematics, physics, chemistry, astronomy and engineering: the speed of light, the Planck constant, the Avogadro number, standard gravity, the unit weight of water… Insert one into your calculation with a tap.

🌍 11 LANGUAGES
• Türkçe, English, Deutsch, Français, Español, Italiano, Português, Русский, 日本語, 한국어, العربية. Light and dark theme; a wide keypad in landscape.

🔒 PRIVACY
• No account and no server of ours. Your expressions, history and settings stay on your phone; no internet connection is needed to calculate.

ℹ️ GOOD TO KNOW
• Calculations use double-precision floating point (about 15 significant digits). Numerical derivatives, integrals and equation solving give approximate results; double-check results for exams and official work.

The app contains ads: a banner at the bottom of the screen, and a full-screen ad only when you leave the graph, matrix or units screen or close the settings, at most once every 4 minutes and never while you are typing. An optional ad-free subscription removes all ads and can be cancelled at any time.

Recent changes:
İlk sürüm 🎉
🧮 Bilimsel hesap: kökler, trigonometri, toplam, türev, integral, denklem çözme.
📈 Dört fonksiyona kadar grafik: kök, en küçük / en büyük değer, kesişim.
ℂ Karmaşık sayılar, ▦ 5×5'e kadar matrisler, ⇄ 140 birim ve 46 sabit.
🌍 11 dil, açık ve koyu tema.