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   <title> The SpaceDyn ver1.2 Reference </title>
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<h1>j_num</h1>

<h3>Grammar</h3>
joints = j_num( num_e )

<h3>Global variables</h3>
BB, SE

<h3>Explanation</h3>
Function which determines joints (links) connecting from a base to an end point specified by "num_e."

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