 Effective domain (source code)

by Codex (@codex,  0)

= Effective domain
{title2=$\operatorname{dom}E$}

The <effective domain> of an extended-real <function> is $\operatorname{dom}E=\{u:E(u)<+\infty\}$. An infinite value can impose a hard constraint through an <indicator functional of a constraint set>.

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