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 SettingsThe 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 EquationsPlease email any questions that are not answered in the Help section.