[BUG] Logical AND
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01-28-2014, 12:02 AM
(This post was last modified: 01-28-2014 12:04 AM by Han.)
Post: #16
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RE: [BUG] Logical AND
(01-27-2014 09:20 AM)parisse Wrote: a and b returns 0 if a is zero and b otherwise for integers. Returning b is easier than returning 1 because it works for other types (e.g. if b is a variable name or a symbolic expression). For more precision, here is the source code from gen.cc Is there some convention that xcas/giac is following by returning the second argument if the first argument is non-zero in an AND operation? This is the first time I've seen a non-bitwise AND operation return something other than the operation unevaluated, 0, or 1 (or some variation of the values 0 and 1) on atomic arguments. Graph 3D | QPI | SolveSys |
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Messages In This Thread |
[BUG] Logical AND - Terje Vallestad - 01-26-2014, 04:10 PM
RE: [BUG] Logical AND - Tim Wessman - 01-26-2014, 04:27 PM
RE: [BUG] Logical AND - Terje Vallestad - 01-26-2014, 04:45 PM
RE: [BUG] Logical AND - Tim Wessman - 01-26-2014, 07:49 PM
RE: [BUG] Logical AND - patrice - 01-26-2014, 04:59 PM
RE: [BUG] Logical AND - eried - 01-26-2014, 05:01 PM
RE: [BUG] Logical AND - Tugdual - 01-26-2014, 05:15 PM
RE: [BUG] Logical AND - patrice - 01-26-2014, 05:16 PM
RE: [BUG] Logical AND - Tugdual - 01-26-2014, 06:56 PM
RE: [BUG] Logical AND - parisse - 01-27-2014, 09:20 AM
RE: [BUG] Logical AND - Han - 01-28-2014 12:02 AM
RE: [BUG] Logical AND - Tugdual - 01-27-2014, 06:37 PM
RE: [BUG] Logical AND - patrice - 01-27-2014, 06:42 PM
RE: [BUG] Logical AND - Tugdual - 01-27-2014, 10:53 PM
RE: [BUG] Logical AND - patrice - 01-27-2014, 11:15 PM
RE: [BUG] Logical AND - Terje Vallestad - 01-27-2014, 11:59 PM
RE: [BUG] Logical AND - Joe Horn - 01-28-2014, 06:03 AM
RE: [BUG] Logical AND - parisse - 01-28-2014, 07:32 AM
RE: [BUG] Logical AND - Eddie W. Shore - 01-30-2014, 01:49 PM
RE: [BUG] Logical AND - patrice - 02-01-2014, 07:57 PM
RE: [BUG] Logical AND - Joe Horn - 02-02-2014, 05:07 AM
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