Re: How to change symbolic values to numbers

• To: mathgroup at smc.vnet.net
• Subject: [mg77070] Re: How to change symbolic values to numbers
• From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
• Date: Sat, 2 Jun 2007 04:22:16 -0400 (EDT)
• Organization: Uni Leipzig
• References: <f3of5j\$oq2\$1@smc.vnet.net>

```Hi,

and what does

f1[{x1_, x2_}] := Block[{L}, L = {x1, 1 - x1};
Print[L];(*Print prints {x1,1-x1} but I want to get value {.5, .5)*)
];

and is Block[{},___] not nonsense ? because if you don't
have local variabels you don't need a block and

f1[{x1_, x2_}] := Print[{x1,1-x1}]

would do it as well?

Regards
Jens

krzysztof.lisowski at wp.pl wrote:
> Hello for all.
> I have a problem with changeing symbolic to number values:
>
> f1[{x1_,x2_}]=Block[{},
> 	L={x1, 1-x1};
>
> Print[L]; (*Print prints  {x1, 1-x1} but I want to get value {.5, .
> 5)*)
>
> ];
>
> fCE=f1[{x1,x2}]; fC[{x1_, x2_}]=fCE;
> fCi:=(N[f1[#]])&;
> fCa=fCi[{.5,.5}];
> fCa
>
> Any help would by very appreciated.
> With best regards,
> Krzysztof Lisowski
>
>

```

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