Groups > comp.soft-sys.math.maple > #158

Re: Mod

Path	csiph.com!x330-a1.tempe.blueboxinc.net!newsfeed.hal-mli.net!feeder1.hal-mli.net!weretis.net!feeder4.news.weretis.net!news.musoftware.de!wum.musoftware.de!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail
From	Axel Vogt <&noreply@axelvogt.de>
Newsgroups	comp.soft-sys.math.maple
Subject	Re: Mod
Date	Mon, 23 May 2011 08:14:38 +0200
Organization	none
Lines	24
Message-ID	<93ucb2F9lmU1@mid.individual.net> (permalink)
References	<_dudnRR1uL-yX0TQnZ2dnUVZ_oGdnZ2d@wavecable.com>
Reply-To	&noreply@axelvogt.de
Mime-Version	1.0
Content-Type	text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding	7bit
X-Trace	individual.net nh533lgWb0TOBXq7un6Y5AUQ4NniN8ji9Urt06TfVkzUZNCVI=
Cancel-Lock	sha1:r/jmvxq/N8SQ8u8NmnQihslYtcY=
User-Agent	Thunderbird 2.0.0.23 (Windows/20090812)
In-Reply-To	<_dudnRR1uL-yX0TQnZ2dnUVZ_oGdnZ2d@wavecable.com>
Xref	x330-a1.tempe.blueboxinc.net comp.soft-sys.math.maple:158

Show key headers only | View raw

Thomas D. Dean wrote:
> Maple 11
> 
> 1/3 mod 7
>   5
> (1/3) mod 7
>   5
> -2 mod 7
>   5
> 
> How do I explain 1/3 mod 7 in terms of the definition?
> 
> r = a mod n
> 
> a = n*q + r
> 
> 
> tomdean

Your input 1/3 is interpreted as "multiplicative inverse
of 3" and Maple answers that: 3*5 = 15 = 2*7 + 1 = 1 (7).

Try to enter 1/2 mod 14. You will get "Error, the modular
inverse does not exist"

Back to comp.soft-sys.math.maple | Previous | Next — Previous in thread | Next in thread | Find similar

Thread

Mod "Thomas D. Dean" <tomdean@speakeasy.org> - 2011-05-22 19:10 -0700
  Re: Mod Peter Pein <petsie@dordos.net> - 2011-05-23 07:39 +0200
  Re: Mod Axel Vogt <&noreply@axelvogt.de> - 2011-05-23 08:14 +0200
    Re: Mod "G. A. Edgar" <edgar@math.ohio-state.edu.invalid> - 2011-05-23 06:04 -0600
    Re: Mod Peter Pein <petsie@dordos.net> - 2011-05-23 14:07 +0200
      Re: Mod Axel Vogt <&noreply@axelvogt.de> - 2011-05-23 14:59 +0200
        Re: Mod Ilmari Karonen <usenet2@vyznev.invalid> - 2011-05-28 22:04 +0000
          Re: Mod Joe Riel <joer@san.rr.com> - 2011-05-31 15:26 -0700
      Re: Mod "G. A. Edgar" <edgar@math.ohio-state.edu.invalid> - 2011-05-23 10:08 -0600
  Re: Mod "Nasser M. Abbasi" <nma@12000.org> - 2011-05-23 16:04 -0700

csiph-web