Scientific Calculator & More

A calculator for everything: the familiar one for everyday sums, and a full scientific one when you need more.

BASIC MODE The calculator you already know, with memory (MC, MR, MS, M+, M-), percentage, square root, square and reciprocal. Open it and use it, nothing to learn.

SCIENTIFIC MODE Type the whole expression and see the result: parentheses, operator precedence and editing with a cursor. - Sine, cosine and tangent, with their inverse and hyperbolic forms, in degrees, radians or gradians. - Powers, roots of any index, logarithms, exponential and factorial. - Exact results: 1/3 stays 1/3, and you can switch between fraction and decimal. - Normal, scientific, engineering or fixed-decimal notation. - SI constants.

HISTORY Every finished calculation is kept: look at it again, reuse a result, or clear the history whenever you like. It can be turned off.

UNIT CONVERTER Length, mass, volume, area, speed, temperature, pressure, energy, power, data and time.

CURRENCIES Reference exchange rates from the European Central Bank. They are fetched at most once every six hours and stored: offline it keeps working and tells you which day they are from.

MORE CALCULATORS - Graphs: plot up to three functions, drag, zoom and touch the curve to read a point. - Quadratic equations, with exact or complex roots. - Statistics: mean, median, mode, standard deviation, variance, quartiles and range. - Programmer: binary, octal, decimal and hexadecimal, signed and unsigned. - Finance: tax, chained discounts, tip, loans, compound interest and margin. - Dates and health: days between two dates, adding days, age and BMI.

HOW IT LOOKS Light and dark themes, and the Classic 2013 theme for anyone who prefers the calculator as it was. On iPad the menu stays pinned to one side.

MADE TO BE USED - Translated into 72 languages, each with its own decimal separator (or the one you pick). - Screen readers: every key says what it does, not the symbol it shows. - Home screen widget with the last result and shortcuts. - Sound and vibration on key press, if you want them.

PRIVACY No accounts, and what you calculate is never sent anywhere. Your history and settings stay on your device. The exchange-rate request carries no data about you.

Privacy policy: https://cscalcul.sanchosancho01-2bb.workers.dev/privacy

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