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Re: Got a tip ?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg97883] Re: Got a tip ?
  • From: David Bailey <dave at removedbailey.co.uk>
  • Date: Tue, 24 Mar 2009 05:34:25 -0500 (EST)
  • References: <gq7jbp$qgp$1@smc.vnet.net>

Fabrizio wrote:
> Hello,
> 
> I want to write a function that translates its argument (which is a letter of the alphabet) into a numerical value.
> 
> f[a] = 1
> f[b] = 2
>  
> .
> 
> If this small module is finished, i want to expand the function by giving as an argument; a string of letters (or a text), but i have no clue which functions i have to use to define the smaller part (only letters) first. What functions can i use for all of this and how do i handle the variables ? Does the difference between Module and Block come into play ? Or . . .any help is much appreciated.
> 
I think you need to be a bit more specific - for example, what should 
these return:

f["foo"]

f[""]

f["\n\n\n\n\n\[Breve]"]

You might want to explore the function ToCharacterCode.

David Bailey
http://www.dbaileyconsultancy.co.uk



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