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Groups > comp.soft-sys.math.mathematica > #3279

Re: pattern example

From Bob Hanlon <hanlonr@cox.net>
Newsgroups comp.soft-sys.math.mathematica
Subject Re: pattern example
Date 2011-06-24 11:50 +0000
Organization Steven M. Christensen and Associates, Inc and MathTensor, Inc.
Message-ID <iu1tm7$9kd$1@smc.vnet.net> (permalink)

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$Version

"8.0 for Mac OS X x86 (64-bit) (February 23, 2011)"

f[3/5, 4, 5, 2/3] /. f[x : (_Integer | _Rational) ..] :> {x}

{3/5, 4, 5, 2/3}


Bob Hanlon

---- Francisco Gutierrez <fgutiers2002@yahoo.com> wrote: 

=============
I find in Leonid's (Shiffrin) excellent book the following example (p. 122):
f[3/5,4,5,2/3]/.f[x:(_Integer|_Rational)..]:>{x}

According to the book, this returns {3/5,4,5,2/3}

However, I get (Mathematica 8.0.1, Windows 7) f[3/5,4,5,2/3]

What's wrong?
Francisco


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Re: pattern example Bob Hanlon <hanlonr@cox.net> - 2011-06-24 11:50 +0000

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