Excellent scientific calculator with symbolic algebra graphing equations integrals and derivatives.

The calculator has globally more than 40 million downloads and 200 000 five-star ratings.

You can write expressions in a natural way and watch your calculations. The result is displayed as a number simplified expression etc.

The calculator has several layouts suitable for various screen sizes:
- "pocket" for small devices
- "compact" for smartphones (in portrait and landscape orientation)
- "expanded" for tablets

A multiline display can be turned on in tablets to show the complete history of calculations and to provide access the previous results.

Users can choose from several high-quality themes.

The calculator has many functions such as:
- up to 100 digits of significand and 9 digits of exponent
- basic arithmetic operations including percentage modulo and negation;
- fractions and mixed numbers;
- periodic numbers and their conversion to fractions;
- unlimited number of braces;
- operator priority;
- repeated operations;
- equations (with one or more variables systems of equations)
- variables and symbolic computation;
- derivatives and integrals;
- graphs of functions equations integral area and limits; 3D graphs;
- calculation details - extended information about a calculation like all complex roots unit circle etc.;
- matrices and vectors
- statistics
- regression analysis
- complex numbers
- conversion between rectangular and polar coordinates
- sums and products of series
- limits
- advanced number operations such as random numbers combinations permutations common greatest divisor etc.;
- trigonometric and hyperbolic functions;
- powers roots logarithms etc.;
- degrees minutes and seconds conversion;
- fixed point scientific and engineering display format;
- display exponent as SI units prefix;
- memory operations with 10 extended memories;
- clipboard operations with various clipboard formats;
- result history;
- binary octal and hexadecimal numeral systems;
- logical operations;
- bitwise shifts and rotations;
- haptic feedback;
- more than 90 physical constants;
- conversion among 250 units;
- Reverse Polish notation.

The calculator has many settings to manage the full screen mode decimal and thousand separators etc.

All features are described with a built-in help.