why need to check if inline doc is already defined?
- To: mathgroup at smc.vnet.net
- Subject: [mg115583] why need to check if inline doc is already defined?
- From: Xah Lee <xahlee at gmail.com>
- Date: Sat, 15 Jan 2011 04:46:25 -0500 (EST)
i noticed that in many addon packages,
they define the inline doc by first checking whether it is already defined,
e.g. at ... Mathematica/7.0/AddOns/Packages/FourierSeries/
If[Not@ValueQ[SomeF::usage],SomeF::usage = "..."
why does it need to check if it is already defined?
Xah =E2=88=91 http://xahlee.org/
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