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MathGroup Archive 1993

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  • To: mathgroup at
  • Subject: notation
  • From: deb at (David E. Burmaster)
  • Date: Sat, 13 Nov 93 09:02:37 -0500

Dear MathGroup,

In his new book on Differential Geometry, Alfred Gray uses the notation

	f[a_] [x_] := a x

where a is a parameter and x is a variable.

This notation puzzles me. It obviously works well, but I do not 
understand the pros and cons of using that notation instead of the 
more standard

	f[a_, x_] := a x

Any thoughts or explanations??

Thanking you in advance
David E. Burmaster
Alceon Corporation

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