<ul><li>Dimensional analysis can be applied to equations involving factorials and related functions by injecting artificial dimensions.</li><li>Factorials can be imagined as n-dimensional volume if each term had units of length.</li><li>Dimensional analysis for factorials and related functions can aid in remembering identities and identifying errors.</li><li>Applying dimensional analysis to the gamma function allows assigning dimensions to complex values and confirming identities.</li></ul>

Dimensional analysis for gamma function values

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