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Re: function not evaluating question tia sal2

  • To: mathgroup at smc.vnet.net
  • Subject: [mg87969] Re: function not evaluating question tia sal2
  • From: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>
  • Date: Mon, 21 Apr 2008 06:38:06 -0400 (EDT)
  • Organization: The Open University, Milton Keynes, UK
  • References: <fuhf9h$ia3$1@smc.vnet.net>

ratullochjk2 at gmail.com wrote:
> function not evaluating question tia sal2
> 
> Greetings All
> 
> I trying to evaluate this function to a numerical value but it doesn;t
> seem to work I replace the expression with t sin t and it works what
> am I doing wrong?
> 
> In[240]:= f = Function[{t}, 0.680232  Cos 6.28319 [t]]
> Out[240]:= Function[{t}, 0.680232 Cos 6.28319[t]]
> 
> 
> In[241]:= Evaluate [f[2.5]]
> Out[241]:= 0.680232 Cos 6.28319[2.5]
> 
> Why am I not getting a numerical value?  tia sal2
> 

It seems you have misplaced a square bracket. (Note that Evaluate is not 
required here.)

In[1]:= f = Function[{t}, 0.680232 Cos[6.28319 t]];
f[2.5]

Out[2]= -0.680232

Regards,
-- Jean-Marc


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