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Re: Unprotect[Pi]

• To: mathgroup at smc.vnet.net
• Subject: [mg90867] Re: Unprotect[Pi]
• From: Steven Siew <stevensiew2 at gmail.com>
• Date: Sat, 26 Jul 2008 04:27:29 -0400 (EDT)
• References: <g6c99d$bu2$1@smc.vnet.net>

In[1]:=3D  Unprotect[Pi]
Out[1]=3D {Pi}

In[2]:=3D  N[Pi,10]
Out[2]=3D 3.141592654

In[3]:=3D  Pi =3D 3
Out[3]=3D  3

In[4]:=3D N[Pi,10]
Out[4]=3D 3.000000000

Cool! Now Pi is 3 just like the bible said.

"And he [Hiram] made a molten sea, ten cubits from the one rim to the
other it was round all about, and...a line of thirty cubits did
compass it round about....And it was an hand breadth thick...." =97
First Kings, chapter 7, verses 23 and 26


On Jul 25, 8:18=A0pm, Scott <sguth... at gmail.com> wrote:
> How does one unprotect symbol Pi and the Greek lower case letter pi
> (&#960;)? =A0Unprotect[Pi] doesn't seem to do the job.
>
> Pi // N
> 3.14159
> Unprotect[Pi]
> {Pi}
> Pi
> &#960;
> Pi // N
> 3.14159
> Unprotect[&#960;]
> &#960;//N
> 3.14159
>
> Thanks for any insight.
>
> Cheers, Scott