cern-ndiff ☆

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Description:
Numerical diff tool

Type: Formula | Latest Version: 5.09.03@0 | Tracked Since: Dec 17, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: scientific diff physics comparison numerical

Install: brew install cern-ndiff

About:
cern-ndiff is a numerical diff tool designed to compare files containing floating-point numbers. It handles expected differences in numerical precision, making it ideal for validating scientific and engineering data outputs. The tool is particularly useful in high-energy physics for comparing data files generated by simulation codes.

Key Features:

Tolerates floating-point precision differences
Configurable absolute and relative error thresholds
Supports complex data formats common in physics
Command-line interface for scripting and automation

Use Cases:

Verifying numerical simulation results in physics research
Comparing output data from scientific software versions
Validating regression tests for computational models

Alternatives:

diff – Standard diff performs strict string comparison and fails on floating-point variations.
numdiff – Similar functionality, but cern-ndiff is optimized for HEP data formats.

License: GPL-3.0-only

Bottles available for: arm64_tahoe, arm64_sequoia, arm64_sonoma, arm64_ventura, arm64_monterey, sonoma, ventura, monterey, arm64_linux, x86_64_linux

Version History

Detected	Version	Rev	Change	Commit