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Add Motivation section to EXP-units README #13

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The9Cat merged 2 commits into from
Jan 22, 2026
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Add Motivation section to EXP-units README #13

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Add Motivation section to EXP-units README
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# Example unit conversion files (Earth–Sun)

## Motivation

Many N-body simulation codes, including EXP, work most efficiently when the gravitational constant G is set to 1 in the simulation units. This directory provides tools and examples for converting physical data (e.g., in CGS or astronomical units) to a scaled unit system where G=1, which simplifies equations of motion and improves numerical stability.

## This directory contains:

| File | Contents |
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