Re: Mutiple delete in lists
- To: mathgroup at christensen.cybernetics.net
- Subject: [mg373] Re: [mg360] Mutiple delete in lists
- From: Xah Y Lee <xyl10060 at fhda.edu>
- Date: Tue, 27 Dec 1994 23:58:52 -0800 (PST)
On Mon, 26 Dec 1994, Gottfried Mayer-Kress wrote:
> According to the Mathematica book 1.8.6 the command:
> Delete[{1,2,3,4,5},2]
> will produce
> {1,3,4,5}
> and:
> Delete[{1,2,3,4,5},{2,3}]]
> should produce
> {1,4,5}
> but I get the error message:
> Delete::part: Part {2, 3} of {1, 2, 3, 4, 5} does not exist.
Mma book did not give an example of
Delete[{1,2,3,4,5},{2,3}]
To delete the 2nd and 3rd part, you need to put braces around 2 and 3.
See mma book chapter 1.8.6, page 129, look at the example In[7] on
ReplacePart. Why you need the braces is explained there.
Xah Lee xyl10060 at tiptoe.fhda.edu
Scholar of Romance
(currently searching for a romantic peer)
Mountain View, CA