MathGroup Archive 2008

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: Unprotect[Pi]


Scott wrote:

> 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

I am not sure to have grasped what your try to achieve, but Unprotect[] 
works fine on my system. The following redefines the value of Pi to the 
nonsensical complex number 3 - I

     In[1]:= Unprotect[Pi];
             Pi = 3 - I;
             Protect[Pi];
             Pi

     Out[4]= 3 - I

Regards,
-- Jean-Marc


  • Prev by Date: Re: Cos[a x - b] displayed as Cos[b - a x]
  • Next by Date: Re: Export into Excel Worksheets
  • Previous by thread: Unprotect[Pi]
  • Next by thread: Re: Unprotect[Pi]