BCD

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Run arpack from ChatGPT or Claude

Routines to solve large scale eigenvalue problems. With BCD, ChatGPT, Claude and other AI apps can install and run arpack on your own computer and read what it prints.

Works on

About arpack

Version
3.9.1
License
BSD-3-Clause
Installs (last 365 days)
752 · #3,035 in Homebrew
Homepage
github.com/opencollab/arpack-ng
Install
brew install arpack

Try asking

“Install arpack with Homebrew and show me its version”
“Read arpack --help and give me three useful examples for my files”
“Update arpack and tell me what changed”

Depends on

eigen · gcc · open-mpi · openblas

Used by

octave · armadillo · igraph

Questions

Can ChatGPT run arpack on my computer?
Yes. With BCD on your Mac or Linux computer and command permission turned on for it, ChatGPT runs arpack there and reads the output. Claude and other apps with MCP connectors can too.

Do I need to install arpack first?
No. If Homebrew is installed, the AI can run brew install arpack for you.

Is it safe?
A new computer starts read-only: running commands is turned on per computer, and BCD reaches only the folders you allow.

Try it on your computer

BCD connects ChatGPT, Claude and other AI apps to your own Mac, Windows or Linux computer. One computer is free, with 20,000 tool calls a month and no card.

Program data from Homebrew, updated 2026-11-11. Installs are Homebrew's installs on request over the last 365 days.