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Absolute value: sometimes CAS is very clever, sometimes not!
09-07-2018, 06:37 PM
Post: #12
RE: Absolute value: sometimes CAS is very clever, sometimes not!
(09-07-2018 06:34 PM)compsystems Wrote:  One problem with xcas is that it often assumes ( = ) as a comparison operator ( == ). I suggest that this feature be activated or not by means of a flag.

https://xcas.univ-grenoble-alpes.fr/foru...=19&t=2105

another problem is that he interprets expressions as if they were literal comparison

Simplify flag: maximum
assume(x,symbol);
answer:=domain((1/(x+1)),x); returns 1 // of true // x ≠ -1
answer:=domain((1/(x+1)),x); returns x ≠ -1 // x

Didn't understand. Care to explain more, please!
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RE: Absolute value: sometimes CAS is very clever, sometimes not! - CyberAngel - 09-07-2018 06:37 PM



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