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Re: Got a tip ?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg97876] Re: Got a tip ?
  • From: "Hans Michel" <hmichel at cox.net>
  • Date: Tue, 24 Mar 2009 05:33:06 -0500 (EST)
  • References: <gq7jbp$qgp$1@smc.vnet.net>

You have stated what you want to do; since, it is not clear what problem you 
are trying to solve I point to the Mathematica built in function 
ToCharacterCode[]

Plus[Plus[ToCharacterCode[ToLowerCase["abcdefghijklmnopqrstuvwxyz"]], -32] -64]
{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
22, 23, 24, 25, 26}

For uppercase

Plus[ToCharacterCode["ABCDEFGHIJKLMNOPQRSTUVWXYZ"], -32]

{33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 
\
52, 53, 54, 55, 56, 57, 58}

Hans

"Fabrizio" <Tekcitizen at hotmail.Com> wrote in message 
news:gq7jbp$qgp$1 at smc.vnet.net...
> 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.
> 



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