Universal Calculator

This tool is a multi-field calculator designed to produce reliable numeric results from several inputs. It is aimed at students, engineers, analysts, and educators who need quick scenario testing and numeric validation without hand calculations.
Conceptually, it accepts a set of numeric values, an operation type, and a desired precision. The engine applies standard arithmetic rules across the inputs, computes the result, and formats the output consistently. It handles missing or invalid data through strict validation and provides clear numeric results when inputs are valid.
Use cases include budgeting scenarios, engineering estimations, classroom demonstrations, and data checks where multiple factors must be combined. The tool supports sum, difference, product, quotient, and percentage calculations with predictable results and transparent formatting.
Unique value lies in its multi-field design and explicit handling of edge conditions, such as division by zero and invalid values, while keeping the workflow simple for rapid iteration and teaching.