proof of formula for log(-t) found in Mathematica?

*To*: mathgroup at smc.vnet.net*Subject*: [mg48194] proof of formula for log(-t) found in Mathematica?*From*: "Roger L. Bagula" <rlbtftn at netscape.net>*Date*: Mon, 17 May 2004 03:22:07 -0400 (EDT)*Sender*: owner-wri-mathgroup at wolfram.com

I found this while doing work on complex exponents: f(t)=Log[-t]=Log[t^2]/2+I*Arg[-t] It is a result built into Mathematica. I would like to see how it is derived as it seem counter intuitive in it's results. Respectfully, Roger L. Bagula

**Follow-Ups**:**Re: proof of formula for log(-t) found in Mathematica?***From:*Raul Martinez <rmartinez@vrinc.com>