How to use:
1. Download and open Scientific Calculator++ on your device.
2. Create or sign in to an account to sync history, variables, and custom functions across devices.
3. Enter expressions with the keypad, use scientific keys for trig and exponents, add parentheses for order of operations, then tap equals to calculate.
4. Tap Graph to plot functions, zoom and pan the chart, and inspect roots, intersections, or extrema.
5. Open Tools to use the Equation Solver, Unit Converter, Matrices, Statistics, and Calculus, save results to History, and adjust Settings for angle units, precision, and themes.