- Complex math expressions with parenthesis variables constants and functions
- Real numbers
- Complex numbers
- Residue classes modulo n
- Calculations available in four numeral systems: binary octal decimal hexadecimal
- Wide range of arithmetic goniometric and hyperbolic functions
- Function derivative (differentiation)
- Higher-order derivatives
- Partial derivatives
- Unit conversion (length speed mass volume temperature etc.)
- Statistics
- Sum
- Product
- Arithmetic mean
- Weighted mean (expected value)
- Dispersion
- Standard deviation
- Median
- Combinatorics
- Combinatorial number
- Variations with / without repetition
- Combinatiions with / without repetition
- Permutations without repetition
- Series summation
- Series product
- Quadratic equations
- Discriminant calculation
- Finding real or complex roots (in case of negative discriminant)
- Rule of three (with direct / indirect proportion). Useful for percentage calculations and more.
- Fully customizable number format
- Decimal separator
- Thousand separator
- Number of decimal places
- Scientific notation
- Calculation history

Have you ever spent hours performing complex calculations with an ordinary calculator a pen and paper only to find out that you have made an error somewhere at the beginning and you have to start all over?

If so your life is about to get so much easier. Kalkules - a popular desktop scientific calculator used by hundreds of thousands of users is now available for Android!