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Unprotect[Pi]

• To: mathgroup at smc.vnet.net
• Subject: [mg90820] Unprotect[Pi]
• From: Scott <sguthery at gmail.com>
• Date: Fri, 25 Jul 2008 06:15:53 -0400 (EDT)

How does one unprotect symbol Pi and the Greek lower case letter pi
(π)?  Unprotect[Pi] doesn't seem to do the job.

Pi // N
3.14159
Unprotect[Pi]
{Pi}
Pi
π
Pi // N
3.14159
Unprotect[π]
π//N
3.14159

Thanks for any insight.

Cheers, Scott