TechCalc scientific calculator is a calculator with 11 computing modes in one application + a handy scientific reference section.

Modes included are:

- Basic,
- Scientific,
- 64-bit Programmer Mode (Hex, Oct, Bin and Dec),
- Graphing (save copy of graph to sdcard),
- Matrices,
- Complex Numbers (cartesian, polar, using Euler's identity),
- Quick Formulas,
- Quick Converter,
- Time Calculator,
- Equation Solver,
- Calculus (Derivative, Definite Integral, Taylor Series & Indefinite Integral) - requires Android version 2.3 or higher

+ the Periodic Table of Elements!

Features include:

- Trigonometric Functions (radians, degrees or gradients)
- Power & Root Functions
- Log and Antilog functions
- Permutations (nPr) and Combinations (nCr)
- HCF, LCM, Prime factorization, Δ% function and the remainder function
- Pol() & Rec() Functions
- Statistics Functions (inc. Bessel, Beta, Binomial, Chi-Squared, Digamma, Error, Exponential, F-, Gamma, Hypergeometric, Normal, Poisson, T- & Weibull)
- Factorial Function
- Modulus Function
- Random Numbers
- Fractions Mode
- Constants (4 categories) - press to include into a calculation or long press for more information on the constant:
- Physical and Astronomical Constants
- Periodic Table - atomic mass (u)
- Solar System - Orbit Distances (km)
- My Constants (save personal constants via the calculation history)
- A wide range of conversion categories – Distance, Area, Volume, Mass, Density, Speed, Pressure, Energy, Power, Frequency, Magnetic Flux Density, Dynamic Viscosity, Temperature, Heat Transfer Coefficient, Time, Angles, Data Size, Exchange Rates, Fuel Efficiency, Audio Signal Level, Torque, Force, Radioactivity, Radiation
- 20 Memory Registers in each of the calculation modes
- A complete record of each calculation is stored in the calculation history, the result of which can be used in future calculations
- Detailed Help and Reference Available
- Highly customizable via the Settings including a wide range of layouts to choose from
- Output font size can be increased or decreased by long pressing the + or - buttons

The reference section includes:

- Physical Laws
- Useful Mathematical Formulas
- Names in the Metric System
- Mathematical Tables (Log & Antilog Tables, Normal Distribution Table, Trigonometric Tables, Power & Root Tables)
- Elementary Algebra
- Linear Algebra (Matrices)
- Trigonometric Identities
- Differentiation Rules
- Integration Rules
- Statistics Formulas
- Vector Mathematics
- ASCII Converter
- Fractional Bits Converter
- Roman Numeral Converter
- pH Calculator
- Interpolation Calculator
- Body Mass Index (BMI) Calculator