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 Converters * pH, Interpolation, Body Mass Index (BMI) & Proportion Calculators * Sigma & Pi Notation Please email any questions that are not answered in the Help section. This is an ad-supported app - upgrade to an ad-free version for USD 0.99 (or the equivalent in local currency) via https://play.google.com/store/apps/details?id=com.roamingsquirrel.android.calculator_plus </div> <div class="show-more-end">