CLI Calculator is a lightweight yet full-featured command-line toolkit that lets you evaluate expressions, convert number bases, solve equations, work with matrices, and inspect divisors without ever leaving the terminal. It targets developers, power users, and anyone who appreciates deterministic C++ utilities.

Highlights

• Evaluate arbitrarily long expressions with + - * / x :, parentheses, factorial, and built-in math functions such as sin, cos, log, sqrt, tan, exp, and sinh
• Convert signed integers between binary (0b), decimal, and hexadecimal (0x) inputs or outputs in one command
• Solve linear (a * x + b = 0) and quadratic (a * x^2 + b * x + c = 0) equations, including complex roots, with guided prompts
• Run matrix workflows (add, subtract, multiply) for arbitrarily sized matrices with validation before each operation
• Perform prime factorization and divisor lookups optimized for large integers
• Inspect or edit persisted variables (vars.toml) so you can reuse values in future sessions or in scripts

CLI workflows

• cli-calculator launches the interactive menu (matrix tools, equation solver, prime factorization, divisors, variable manager, etc.)
• cli-calculator --repl opens an instant read–eval–print loop with history (:history, !<n>) and autocompletion-like shortcuts
• cli-calculator --eval "2*(3+5)" evaluates expressions headlessly; combine with --output json|yaml|xml for script-friendly responses
• cli-calculator --convert 10 16 42, --divisors 120, --prime-factorization 32768, and --square-root 625 provide single-shot utilities without entering the menu
• cli-calculator --batch tasks.txt executes a list of commands with helper directives (@set, @input, @include, @if, @unset) so you can automate repetitive calculations

Usage tips

• Variables and batch directives let you reuse previous results; numerical CLI flags accept variable names as arguments
• --variables (or --list-variables) prints the persisted values, and --version reports the build without launching the UI
• ANSI colors are enabled by default; disable them with --no-color
• Works great inside scripts, containers, CI pipelines, or minimal environments—there are no runtime dependencies beyond libstdc++