Unprotecting "I"

*To*: mathgroup at smc.vnet.net*Subject*: [mg64787] Unprotecting "I"*From*: Chris Young <c1572young at earthlink.net>*Date*: Thu, 2 Mar 2006 19:28:09 -0500 (EST)*Sender*: owner-wri-mathgroup at wolfram.com

I'd like to be able to occasionally use all the letters of the alphabet (or at least the first 12 or so), both small and capital letters, for variables. I think it's the easiest way to present a lot of formulas. I was able to Unprotect everything except "I", which Mathematica reserves for the "imaginary unity", "i". Is there any way to temporarily unprotect "I"? (Also, I wish there was some way to copy the example from my notebook without all the extraneous back-slashes, etc.) What I get from Mathematica is as follows: Unprotect[I] Protect::locked: "Symbol \[ImaginaryI] is locked. Attributes[I] {Locked, Protected, ReadProtected} ClearAttributes[I, Locked] Attributes::locked: Symbol \[ImaginaryI] is locked. Clear[I] Clear::wrsym: Symbol \[ImaginaryI] is Protected. ClearAll[I] ClearAll::"wrsym": "Symbol \[ImaginaryI] is Protected." Any help appreciated. -- Chris Young c56young at earthlink.net