TechCalc+ contains 12 computing modes in one application + a handy reference section.

Modes included are:
• Basic Mode,
• Scientific Mode,
• 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
• Financial

+ the Periodic Table of Elements!

Features include:
• All Trigonometric operations (radians, degrees or gradients)
• Powers & Roots
• Logs and Antilogs
• Factorial, Modulus & Random Numbers functions
• HCF, LCM, Prime factorization
• Pol() & Rec() Functions
• Permutations (nPr) and Combinations (nCr)
• Statistics
• Fractions Mode
• A wide range of conversion categories and constants
• 20 Memory Registers in each of the calculation modes
• Detailed calculation history
• Extensive Help and Reference
• Highly customizable via the Settings

The reference section includes:
• Physical Laws
• Names in the Metric System
• Mathematical Tables
• Elementary & Linear Algebra
• Trigonometric Identities
• Differentiation & Integration Rules
• Statistics Formulas
• Vector Mathematics
• ASCII, Fractional Bits, Roman Numeral & Number Base Converters
• pH, Interpolation, Body Mass Index (BMI), Percentage, Proportion & Molecular Weight Calculators
• Sigma & Pi Notation
• Balancing Chemical Equations
• Statistics (Grouped Data)
• Numerical Sequences
• Humidity Calculations
• Boolean Algebra Calculator
• Empirical Formula Calculator
• Characteristics of an RLC Circuit
• Feet and Inches Calculator