Re: wierd Log[0] *0 result

*To*: mathgroup at smc.vnet.net*Subject*: [mg9077] Re: [mg9022] wierd Log[0] *0 result*From*: seanross at worldnet.att.net*Date*: Thu, 9 Oct 1997 01:42:57 -0400*Sender*: owner-wri-mathgroup at wolfram.com

Patrick Tao wrote: > > Hello mma users, > > I have a quick question on the following computation: > > the natural log of 0 times 0 writen Log[0]*0 > > Should that not be 0 ? > > mma is returning an Indeterminate result > > Can somebody please help me understand this computation. > > Many Thanks > > -patrick Log[0]=-Infinity Infinity * 0 is one of the seven standard indeterminate forms along with: 0/0, Infinity/Infinity, 1^Infinity, Infinity-Infinity, Infinity^0, zero^zero. I recommend a good pre-calc text as a brush up on limits.