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visits member for 1 year, 7 months
seen Jan 10 at 22:35

Dec
15
comment Can you help me with this question x - y ≥ 2
..as pointed out earlier
Dec
15
comment Can you help me with this question x - y ≥ 2
plot the line, see which points fall where, get some insight
Dec
15
comment A contest question on probability
a contest Q can't be this vague. your Q fuzzy even in the basic terminology-- "..the set (d1,,,dk) contains..". you mistook the Q or something else missing.
Dec
15
comment Basic Math Question for Test
@Shahar that was the kind of twist I was talking about. sry - no more comments to you.
Dec
15
comment Basic Math Question for Test
@Shahar he added the part out of the double quotations-- the rest of his first phrase after mine and this is annoying if nothing else.
Dec
15
comment Basic Math Question for Test
@crf - funny, your comment after mine time-wise appears before mine.
Dec
15
comment A contest question on probability
or, you phrase the Q right-- not like gibberish. that's what its reading. mathematically.
Dec
15
comment Basic Math Question for Test
what's the passing grade
Dec
15
comment A contest question on probability
The definition of nice integers reads like the following and nothing else: $d_5$ has to be 6-- since it's the only digit greater than 5. When $d_5=6$, $d_4=5$, .., $d_1=2$. And the only nice integer is 234561. something missing here.
Oct
25
comment how long does this subroutine and loop take
math.stackexchange.com/users/63860/notamathwiz: curious - i'd check this w/the marker. this is the correct answer, and I don't think i'm missing anything.
Jul
7
comment Find the following $\overline{\overline{C}}$ and $\overline{\overline{A\cup C}}$
this a Q of arithmetic
Jun
17
comment Draw the state diagrams for the PDAs
you may have a better hit on this on cs.stackexchange.com.
Jun
17
comment Grouping items into groups with max size
define "states", define "items"-- are they identical or different combinations of them count.
Jun
15
comment Graph Verification Problem
if the two arguments of $f$ are two partitions and not just any two subsets of $V$, you can't verify the edge set for all cases: think about a clique with one edge missing.
Feb
23
comment Enumerate solution of $x_{1} + x_{2} + … + x_{r} = n$
There must be some restrictions on domain. otherwise you have infinitely many solutions.
Feb
8
comment Combinatorics/Permuation question - Am I overcounting? (Verify my answer)
The Q seems to asking for "at most 2 repetitions of a digit". That's any number of digits repeating, but repeating at most twice. 11220045456 is a valid answer, but that's not what your solution is answering.
Feb
6
comment Probability of dice
Depends. Check whether 1-(5/6)^3 is "probable".
Feb
6
comment Uncertaint linear program
Never mind polynomial, your problem solves in constant time. Its solution is not any dependent on its parameter values.
Feb
3
comment Is A∨¬A a tautology when there is a proof (by contradiction)?
How is your proof that it is not ?
Feb
1
comment What kind of algorithm/formula would I need to calculate how many items need to fill requirements?
@tsdexter you welcome. glad that helped.