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Topic: MAPLE: select(has, ...) weirdness
Replies: 3   Last Post: Jan 3, 1997 4:36 AM

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Thomas Koenig

Posts: 11
Registered: 12/8/04
MAPLE: select(has, ...) weirdness
Posted: Jan 2, 1997 1:00 PM
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I'm trying to pick apart an expression, and I've stumbled across
something strange:

$ maple
._|\| |/|_. Copyright (c) 1981-1994 by Waterloo Maple Software and the
\ MAPLE / University of Waterloo. All rights reserved. Maple and Maple V
<____ ____> are registered trademarks of Waterloo Maple Software.
| Type ? for help.
# The following returns nothing, which is as it should be
> select(has, a, b);

# The following should also, IMHO, return nothing.
> select(has, -a, b);


Is there any workaround, except testing the return value for 1

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