Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2005
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*November
*December
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2005

[Date Index] [Thread Index] [Author Index]

Search the Archive

RE: Pattern matching in functions

  • To: mathgroup at smc.vnet.net
  • Subject: [mg54394] RE: [mg54379] Pattern matching in functions
  • From: "Barthelet, Luc" <lucb at ea.com>
  • Date: Sun, 20 Feb 2005 00:07:53 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

In[1]:
Cases[l^4*a[b][l] + l*a[c][l], a[y_][z_] -> y, Infinity]

Out[1]:
{b,c}

-----Original Message-----
From: Maximilian Ulbrich [mailto:mulbrich at berkeley.edu] 
To: mathgroup at smc.vnet.net
Subject: [mg54394] [mg54379] Pattern matching in functions

Hi,

I would like to find subexpressions using Cases.
In the following case, I expected to find a[b] and a[c] and therefore
get {b,c} as the result. However, I get {l,l}.
What happens and how can I solve this?

Cases[l^4*a[b][l] + l*a[c][l], x_a[y_] -> y, {0, Infinity}]

Thanks,
Max


  • Prev by Date: Re: Question about an integral
  • Next by Date: Re: Question about an integral
  • Previous by thread: Re: Pattern matching in functions
  • Next by thread: Re: Pattern matching in functions