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Re: Is there ToNumber?

• To: mathgroup at smc.vnet.net
• Subject: [mg119628] Re: Is there ToNumber?
• From: DrMajorBob <btreat1 at austin.rr.com>
• Date: Wed, 15 Jun 2011 07:19:41 -0400 (EDT)
• References: <isnllk$n7b$1@smc.vnet.net> <201106090945.FAA06238@smc.vnet.net>
• Reply-to: drmajorbob at yahoo.com

'Cuz you can't. Simple.

Bobby

On Tue, 14 Jun 2011 05:13:39 -0500, SigmundV <sigmundv at gmail.com> wrote:

> I had imagined that applying Real to the string would make it a
> number, e.g. Real@@"1.2", but it doesn't work:
>
> In[1]:= Head[Real @@ "1.2"]
>
> Out[1]= String
>
> Of course ToExpression works as intented:
>
> In[2]:= Head[ToExpression@"1.2"]
>
> Out[2]= Real
>
> Why can't I simply change the head of a string by using Apply?
>


-- 
DrMajorBob at yahoo.com

• References:
  • Re: How show axes labels with AxesOrigin->{0,0,0} in 3D?
    • From: Peter Breitfeld <phbrf@t-online.de>