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.

// Option A //

To download HiPER Calc Pro mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download HiPER Calc Pro mod APK.
2. Save the file in your device Downloads folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B //

To download HiPER Calc Pro from HappyMod APP, you can follow this:
1. Open your browser and download the HappyMod APK file from HappyMod.com - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android downloads and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search HiPER Calc Pro in HappyMod App.