Calculator, basic and advanced vs ACX HK

Amazing complete calculator. SIMPLE CALCULATIONS Just looking for simple equations, easy and simple UI. ADVANCED CALCULATIONS Looking for more power? Turn on the advanced option and get a rich amount of mathematical operators. EQUATION SOLVER, STEP BY STEP Wondering how the equation was solved or what went wrong? No problem see them all step by step and learn how to do math! CALCULATION HISTORY View your previous equations, continue with them or share it! GRAPHS Wondering how the equation looks with multiple inputs? Plot the equations in graphs! TABLES Wanting to see the results for one equation for multiple inputs? Simple see them all in a clear table! SUPPORTED OPERATORS AND VALUES Addition, Subtraction, Division, Multiplication Percentage, Additive Percentage Square, Cubit, to the Power of x Root, Cubic, nth Root of Power of Euler, Power of Two, Power of Ten Natural Logarithm, Binary Logarithm Common Logarithm, x Logarithm y Sine, Cosine, Tan (Normal, Hyperbolic and Arc. All available for Radian and Degree calculations) Absolute, Factorial, nCr, nPr, Previous answer, Euler, Pi Random Have fun calculating!

This mobile app is designed for the Hong Kong Housing Authority for estate building access control. The estate building installs our company's reader, once the tenant downloads the mobile apps and inputs the authorized activation code, the tenant can use the mobile QR for the desired building door access.