MathGroup Archive 2012

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: Is there way to use something like Assuming with the function

  • To: mathgroup at smc.vnet.net
  • Subject: [mg128802] Re: Is there way to use something like Assuming with the function
  • From:
  • Date: Tue, 27 Nov 2012 03:32:29 -0500 (EST)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com
  • Delivered-to: l-mathgroup@wolfram.com
  • Delivered-to: mathgroup-newout@smc.vnet.net
  • Delivered-to: mathgroup-newsend@smc.vnet.net

Look at the documentation of Refine. In your example

Refine[Sign[list],a<0]

you will get the expected answer because

Refine[Sign[a], a < 0]

returns -1.


============
Carlos César de Araújo
Gregos & Troianos Educacional
www.gregosetroianos.mat.br
Belo Horizonte, MG, Brasil
TeL: (31) 3283-1122
Cel: (31) 95312151
Skype: carlos.cesar.get



  • Prev by Date: Re: inserting an equation and plotting it
  • Next by Date: Re: Numerical expression
  • Previous by thread: Re: inserting an equation and plotting it
  • Next by thread: Bessel integral - Strange Hypergeometric Function