Re: Mapping a pure function with 2 conponents.
- To: mathgroup at smc.vnet.net
- Subject: [mg77321] Re: Mapping a pure function with 2 conponents.
- From: Adriano Pascoletti <adriano.pascoletti at gmail.com>
- Date: Wed, 6 Jun 2007 07:33:09 -0400 (EDT)
- References: <f43i20$3hl$1@smc.vnet.net>
On Jun 5, 1:39 pm, phoenix7... at gmail.com wrote:
> I'm trying to get the following code to work:
>
> Map[#1^2 + #2 &, {{0, 1}, {2, 3}, {4, 5}}]
>
> The goal is to use a pure function in order to achieve the result:
> {1, 7, 21}
>
> The issue is that the evaluation involves #1^2 + #2 & [{0,1}]
> instead of #1^2 + #2 & [0,1]
>
> Thanks, in advance.
You must access the first and the second part of the (unique) argument
(#1)
In[1]:= (#1[[1]]^2 + #1[[2]] & ) /@ {{0, 1}, {2, 3}, {4, 5}}
Out[1]= {1, 7, 21}
Adriano Pascoletti