Two calculators in one app — a full-size desktop calculator and a scientific calculator, with voice help.
NCL Calculator - Scientific is a free Android calculator that gives you both keypads in one app: a big-key desktop calculator for daily work, and a full scientific calculator with 15 built-in apps.
MU mark-up, TAX+ and TAX- with saved rate, GT grand total, MRC memory
Square root, percentage and constant (K) calculations
Rounding F / CUT / UP / 5-4 / ADD2, number formats including Indian 12,34,567
Scientific calculator
15 apps: Equation, Table, Statistics, Matrix, Vector, Complex, Distribution, Spreadsheet, Ratio, Base-N, Convert, Function Analysis, Math Box, Catalog, Settings
Powers, roots, logs, factorials, nPr and nCr, trigonometry in DEG / RAD / GRAD
Check & Correct with up to 300 steps, and ANS CHECK
Help that explains every button
Every key is described in plain language with a real example. In scientific mode each button shows its normal function and its yellow (SHIFT) function separately, so there is no confusion. Help is available in English and Hindi, and can be read aloud.
About the app
Around 1 MB — installs in seconds
Works on Android 8.0 and above
Free, supported by a small number of well-spaced ads. Ads need an internet connection; the calculator works whenever you open it.