Re: Log Function
- To: mathgroup at smc.vnet.net
- Subject: [mg68191] Re: [mg68176] Log Function
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Sat, 29 Jul 2006 01:00:05 -0400 (EDT)
- Reply-to: hanlonr at cox.net
- Sender: owner-wri-mathgroup at wolfram.com
Log[15] is exact and will remain in that form until an inexact result is requested
{Log[15],Log[15.],N[Log[15]]}
{log(15),2.70805,2.70805}
Exp[%]
{15,15.,15.}
{Log[2,15], Log[2.,15],Log[2,15.],N[Log[2,15]]}
{Log[15]/Log[2], 3.90689, 3.90689, 3.90689}
2^%
{15,15.,15.,15.}
Bob Hanlon
---- Joe <joealan at mac.com> wrote:
> I am very new so please be gentle. I am attempting to use Mathematica
> 5.2 for the first time and I am in trouble already. I want to take the
> log of 15. I have tried log[2., 15] and I get an echo. I tried
> N[log[2.,15]] I get a buzzer. What am I doing wrong?
>
> Thanks
> Joe
>