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MathGroup Archive 2005

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Re: Problem with multiple function calling from a novice...

  • To: mathgroup at smc.vnet.net
  • Subject: [mg58588] Re: Problem with multiple function calling from a novice...
  • From: dh <dh at metrohm.ch>
  • Date: Sat, 9 Jul 2005 04:07:49 -0400 (EDT)
  • References: <dal1tq$ibc$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Hi Sami,
To show what a function evaluates to, simply wrap it in a "Print" 
statement. But note that the Print statement returns "Null". Therefore, 
if you need the return value, either assigne it before the Print or use 
a temporary variable.
Example:

a[x_]:=2x;
fun[]=:Module[{},Print[a[2]]; ]
or
fun[]=:Module[{t},Print[t=a[2]]; ]

sincerely, Daniel

sami wrote:
> Hi all. I have a small problem, and I would like some help.
> 
> Suppose I define a few functions, say a,b,c etc.
> 
> Question 1: How can I call them from inside a program, so that they
> ALL
> show what they evaluate in turn? (Not just the last one, but each
> one.)
> 
> Question 2: How can I modify an If...Then clause of the form:
> 
> If[ <Condition> , a;b;c;...etc.]
> 
> or a While loop:
> 
> While[ <Condition> , a;b;c;...etc.]
> 
> so that, again, they ALL show what they evaluate in turn? (Again, not
> just
> the
> last one like in this case).
> 
> Thank you
> 
> Sami
> 


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