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Almost Equal

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library 1.1.0 ·javascript maintenance
verified Jun 17, 2026

The `almost-equal` package provides a robust utility for comparing two floating-point numbers (`a` and `b`) with configurable absolute and relative tolerances. It addresses the inherent precision issues in floating-point arithmetic by not relying on direct equality (`a === b`). The current stable version is 1.1.0, released in 2013, indicating a very mature and stable codebase with a minimal release cadence, primarily focusing on its original purpose without frequent updates. It differentiates itself by offering both `FLT_EPSILON` (32-bit) and `DBL_EPSILON` (64-bit) constants and a clear formula `|a - b| < max(absoluteTolerance, min(|a|, |b|) * relativeTolerance)` for precise control over the comparison logic, making it suitable for scientific and financial applications where exact float comparison is critical but direct equality checks are unreliable.

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