Show HN: A calculator CLI to help your agents perform calculations accurately

A developer released llm-calc, a dependency-free command-line calculator designed for LLM agents to perform accurate arithmetic using deterministic float64 math. The tool supports scientific operations, trigonometric functions, and configurable precision, helping agents avoid calculation errors.

llm-calc is a small dependency-free command line calculator intended for LLM agents and scripts. It evaluates common scientific-calculator operations with deterministic float64 math, so agents can delegate arithmetic instead of guessing. Download pre-built binaries from releases, or, build locally as documented below. On macOS, unsigned downloaded binaries can be blocked by Gatekeeper with a message that the file cannot be opened. After extracting the release archive, remove the quarantine flag: xattr -d com.apple.quarantine ./llm-calc-1.0.0-darwin-arm64 Use the actual extracted binary name for your platform, for example llm-calc-1.0.0-darwin-amd64 on Intel Macs. On Windows, if SmartScreen or PowerShell reports that the downloaded file is blocked, unblock the extracted .exe : Unblock-File .\llm-calc-1.0.0-windows-amd64.exe The release archives preserve executable permissions on macOS and Linux. If your shell still reports permission denied after extracting, make it executable: chmod +x ./llm-calc-1.0.0-darwin-arm64 git clone https://github.com/freakynit/llm-calc cd llm-calc go build -o llm-calc . Drop the resulting binary somewhere on PATH . Cross-compile examples: GOOS=linux GOARCH=amd64 go build -o dist/llm-calc-linux-amd64 . GOOS=darwin GOARCH=arm64 go build -o dist/llm-calc-darwin-arm64 . GOOS=windows GOARCH=amd64 go build -o dist/llm-calc-windows-amd64.exe . llm-calc "2 sin pi / 4 ^ 2" llm-calc "sqrt 81 + abs -4 " llm-calc "cos rad 60 " llm-calc "-2^2" Always pass exactly one quoted expression. This keeps the interface predictable for LLM agents and avoids shell parsing surprises. Set output precision: llm-calc -precision 16 "1 / 3" Operators: + - / % ^ parentheses Constants: pi e tau phi Functions: abs acos asin atan cbrt ceil cos deg exp fact floor hypot ln log log10 max min mod pow rad round sin sqrt tan Notes: - Trigonometric functions use radians. - Use rad degrees and deg radians for angle conversion. log and log10 are base-10 logarithms. ln is the natural logarithm. ^ is right-associative, so 2^3^2 means 2^ 3^2 .- Factorial only accepts non-negative integers up to 170 . - Non-finite results, division by zero, and malformed expressions return a non-zero exit code.