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Re: question

  • To: mathgroup at smc.vnet.net
  • Subject: [mg21147] Re: [mg21039] question
  • From: "Tomas Garza" <tgarza at mail.internet.com.mx>
  • Date: Fri, 17 Dec 1999 01:21:50 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

Alexandru Tintea [alext at pluto.qteam.ici.ro] wrote:

> In Mathematica Version 2.2. I can't write_and_evaluate 
> Cos[2]*Sin[3] because
> I receive a simple result: Cos[2]*Sin[3]
> If I write Cos[0.2]*Sin[3.3] I receive a numeric result: 0.05756;
> If I write Evaluate[Cos[0.2]]*Evaluate[Sin[3.3]] I receive a 
> numeric result:
> 0.05756;
> If I write Evaluate[Cos[2]]*Evaluate[Sin[3]] I receive a literal result:
> Evaluate[Cos[2]]*Evaluate[Sin[3]]
> I set the path in the "init.m" file and I receive the same answers.
> What can I do?

Try writing a decimal point after any of the arguments:

In[1]:=
Cos[2.]*Sin[3]
Out[1]=
-0.0587266

Alternatively,

In[2]:=
Cos[2]*Sin[3] // N
Out[2]=
-0.0587266

Tomas Garza
Mexico City


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