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seen Mar 22 at 9:25

Dec
27
comment Can we express “exactly X” with set theory?
I am not trying to make a point.Just to clear my confusion.You note that we "define more and more terms and abbreviate..." so I understand by this that the term "exactly" is an abbreviation of a more general (accurate?) definition. So we turn to the expanded definition to express the "exactly" in set theory?
Dec
27
comment Can we express “exactly X” with set theory?
But you also explain the term exactly in your answer by rephrasing.
Dec
26
comment Can we express “exactly X” with set theory?
I guess that adding some suitableHAVING clause should work in SQL My question is not about how to form the SQL query.My confusion is mainly about the need to rephrase the term "exactly" to the equivalent "no more and no less than".
Dec
26
comment Can we express “exactly X” with set theory?
@marcvanleeuwen:It is not that I dislike something.I am trying to understand why the "exactly" needs to be rephrased to be "captured"
Dec
26
comment Can we express “exactly X” with set theory?
Yes, I understand that The word "exactly" means "no more and no less" but my question is why do we need to rephrase it in order to manipulate data sets
Dec
26
asked Can we express “exactly X” with set theory?
Sep
23
awarded  Commentator
Sep
23
comment Confused in basic hex subtraction
It is the borrowing part that I don't understand in the first place
Sep
23
comment Confused in basic hex subtraction
This makes the second position a 16. How can this hold? The digits are only 0-F so how can the second position be 16?
Sep
22
asked Confused in basic hex subtraction
Sep
21
awarded  Scholar
Sep
21
accepted How is algebra and geometry related to calculus?
Sep
19
asked How is algebra and geometry related to calculus?
Aug
23
awarded  Popular Question
Mar
24
comment Aproximate calculation in decimals
Six figures means six figures and not decimal places.So 0. is also counted.Also I don't know what is absolute/relative error
Mar
24
revised Aproximate calculation in decimals
edited tags
Mar
24
comment Aproximate calculation in decimals
How did you come up that the error would be less that 5*10^0?Also what is the difference between absolute and relative error?
Mar
24
comment Aproximate calculation in decimals
But if the actual number was e.g. 3271 and the approximate number was 3270 I would be off by 1/3271=0.0003 I.e. +/- 3 in tenth thousand.So why doesn't this approach work in fractional decimals?
Mar
24
asked Aproximate calculation in decimals
Apr
23
comment Trivial question on an algebraic equation
Thanks a lot? But how did you derive that? In my program I did this as an "optimization" trick (could do it in another way) but when I couldn't remember how to figure the solution, I was really annoyed by myself