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Deleting more subtle then Clear[ ] ?

• Subject: [mg2234] Deleting more subtle then Clear[ ] ?
• From: alfred at ca-risc.co.at
• Date: Wed, 18 Oct 1995 05:53:14 GMT
• Approved: usenet@wri.com
• Distribution: local
• Newsgroups: wri.mathgroup
• Organization: EUnet EDV DienstleistungsgesmbH, Wien
• Sender: daemon at wri.com ( )

Well,
	Let's assume we have a function f[x,y,z] where x and y are VERY big or  
time consuming lists of numbers or functions.
	By defining f[x_,y_,z_]:= f[x,y,z] =   I make MMA remember what it did.  
How can I now tell it to disremember for all f[x,*,*] when I specifically want  
it to reprocess whatever is dependend on x (i.e. the contents of the file has  
changed but the name is the same) but NOT on y?

Thanks for help

Alfred
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