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Problem with -2<-1 returns 1 => true
06-28-2018, 07:49 PM (This post was last modified: 07-20-2018 03:18 PM by compsystems.)
Post: #6
RE: -2<-1 returns 1 => true
Other problems
Boolean operators are not yet working on CAS mode, classpad300/400 ok, ti89/92/v200, ok, hpprime =(

0: NOT(x<13) RETURNS x≥13 // ok
http://www.wolframalpha.com/input/?i=NOT(x%3C13)

1: (x<13) AND (x>5) RETURNS (13>x) AND (x>5) // OK
http://www.wolframalpha.com/input/?i=(x%...ND+(x%3E5)

2: (x<13) AND (x<5) RETURNS (13>x) AND (5>x) // => x<5
http://www.wolframalpha.com/input/?i=(x%...ND+(x%3C5)

3: (x<13) OR (x>5) RETURNS (13>x) OR (x>5) // => TRUE
http://www.wolframalpha.com/input/?i=(x%...OR+(x%3E5)

4: (x<13) OR (x<5) RETURNS (13>x) OR (5>x) // => x<13
http://www.wolframalpha.com/input/?i=(x%...OR+(x%3C5)

5: (x<13) XOR (x<5) RETURNS 0 ? // (x>=5) AND x<13 // [5, 12)
http://www.wolframalpha.com/input/?i=x%3C13+Xor+x%3C5

6: (x>=5) AND x<13 RETURNS
http://www.wolframalpha.com/input/?i=(x%...AND+x%3C13
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Messages In This Thread
RE: -2<-1 returns 1 => true - Jean-Michel - 06-19-2018, 11:20 AM
RE: -2<-1 returns 1 => true - compsystems - 06-20-2018, 05:05 PM
RE: -2<-1 returns 1 => true - compsystems - 06-28-2018 07:49 PM
RE: -2<-1 returns 1 => true - compsystems - 07-20-2018, 02:45 PM



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