Re: Can I define 0^0 to be 1 for a notebook

*To*: mathgroup at smc.vnet.net*Subject*: [mg63150] Re: Can I define 0^0 to be 1 for a notebook*From*: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>*Date*: Thu, 15 Dec 2005 07:14:09 -0500 (EST)*Organization*: The Open University, Milton Keynes, UK*References*: <dnrir7$o63$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Thomas Schmelzer wrote: > Hi there, > thanks for all your help with a previous "73" problem. > This time my question is probably even simpler... > If I enter 0^0 Mathematica keeps teeling me that this is > an indeterminate expression. > Can I define for a single notebook the rule "0^0 = 1?" > How to do that? > > Often in my modules expressions like > > "c^n" appear were both numbers can be 0 > Best, > Thomas > > Hi Thomas, In[1]:= FullForm[Unevaluated[0^0]] Out[1]//FullForm= Unevaluated[Power[0,0]] In[2]:= Unprotect[Power]; 0^0 = 1; Protect[Power]; In[5]:= 0^0 Out[5]= 1 will do it. Also, check the following MathGroup thread: http://groups.google.fr/group/comp.soft-sys.math.mathematica/browse_thread/thread/e461770e161dd824/f86ab5a9dd59b3bd?q=0%5E0+indeterminate&rnum=2#f86ab5a9dd59b3bd Best regards, /J.M.