Re: Postfix (//) with Options?
- To: mathgroup at smc.vnet.net
- Subject: [mg4666] Re: Postfix (//) with Options?
- From: phbrf at ibm.net (Peter Breitfeld)
- Date: Thu, 22 Aug 1996 03:55:18 -0400
- Sender: owner-wri-mathgroup at wolfram.com
In <4v16ds$f8k at ralph.vnet.net>, "Alex Scheitlin" <alex-s at worldnet.att.net> writes:
>I'm not sure it makes it makes it more readable but infix works. e.g.
>expr~N~k
>expr~Flatten~1
>
>AES <siegman at ee.stanford.edu> wrote in article
><4u9i7r$moj at dragonfly.wolfram.com>...
>> How can I use a postfix operation which has optional parameters and
>specify
>> the parameters in the postfix? For example, how can I write N[expr,k]
>
>> as expr // N plus something to express a nondefault value for k ?
>>
>> I particularly want to implement Flatten[expr,1] in postfix
>> form, because it seems more readable to have the expression (which may be
>> lengthy) come first, then the Flatten as an afterthought (reduces the
>> depth of brackets by one also).
>
expr // N[#,20]& works to produce eg 20 digits.
===================================
Peter Breitfeld, Saulgau, Germany
<phbrf at ibm.net>
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