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How does:
1 + 2 + ... + N-1 + N + N + N-1 + ... + 2 + 1 N+1 + N+1 + ... + N+1 + N+1
equal N(N + 1)? Shouldn't it be 4N + 4 or 4(N + 1)?
Started by Brandon on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
There are n columns....
Each column of the first 2 rows adds up to n+1.
I assume your notation means row 1 + row 2 = row 3?
in this case, look at the columns.
Because you have N number of (N+1) terms.
It is N(N + 1).
Represent.
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1+1+1+1+1+1+1+1+1+1-1+1+1+1+1+1+1x0 =? http://www.facebook.com/questions/195880207126818/
EDIT: Rapido riassunto per chi non avesse facebook:
Le risposte date sono:
0-2.773.800 voti
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16-528.000 voti
17-132.171 voti Ultima modifica di ...
Started by hardware64 on
, 15 posts
by 9 people.
Answer Snippets (Read the full thread at gamesvillage):
Il Joaqui....
Follie dal forum 1 paolo94ishere 3 scheda video 5 spostare la terra rimorchiare almeno che tutti l'1 non siamo in parentesi e quindi il risultato intero va moltiplicato per 0, prima vanno di pari passo.
Io ho il 42.
Pantofole.
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Int a = 1 << 32; int b = 1 << 31 << 1;
Why does a == 1? b is 0 as I expected.
Started by CookieOfFortune on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
It is as if the ....
From section 5.19 of the spec :
If the promoted type of the left-hand operand is int , only the five lowest-order bits of the right-hand operand are used as the shift distance .
All shifts are done mod 32 for ints and mod 64 for longs .
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Ask your Facebook Friends
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In an empty dataset, what is more correct to put in the pagination information in the screen?
Page 1 of 0 Page 1 of 1 Page 0 of 0
Started by Daniel Silveira on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
IMO there should not be any pages.
Its gotta be Page 1 of 1 if a page exists at all.
Page 1 of 1"
You are still printing a page out, even if it is to say "There is no data available for your query".
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Revised T5 = ({0, +1, x, y, -1}; +, -; 0, +1, -1) Part 1: Foundations Rather than a lengthy series of posts, this presentation offers most of the information in a revised version of an earlier notebook. The notebook and several figures are attached in...
Answer Snippets (Read the full thread at wolframscience):
That is, instead of being at the output of the original phase with its cell content {0, 1 find yourself back to corresponding cell content {0, 1, 2}, which is identical to the original phase consist of these members, where duplicates....
Of rules.
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In Perl, the array index -1 means the last element:
@F=(1,2,3); print $F[-1]; # result: 3
You can also use the $# notation instead, here $#F :
@F=(1,2,3); print $F[$#F]; # result: 3
So why don't -1 and $#F give the same result when I want to specify the...
Answer Snippets (Read the full thread at stackoverflow):
A range of 1..-1 is empty, and that is why it returns subscripts, so as far as it's concerned....
The proper way is $#F.
-1 is accepted as index to mean the index of last element.
The [] operator will accept either a single index or a range .
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Hi,
I have a 1 x N double array and I would like to merge it to become a 1 x 1 array.
E.g. K = [0,1,1,1];
I want K to become K = [0111];
How do I do it?
Started by HH on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
1*4 + 10*3 + 100*2 + 1000*1
in python:
''.join([str(i) for i in k]) '1234'
Here's a cute way of doing it in one line:
>> K = [1 2 3 4]; >> K*10....
You can do this mathematically, based on the position of the number i.e .
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I need to present a flag - 0 if a condition is not meet, 1 if it is - and I can do it in two different ways :
Get Employee ID, name, 1 if has others in suborder - 0 if not :
SELECT e.ID , e.Name , ISNULL ( ( SELECT TOP 1 1 FROM Employee se WHERE se.ManagerID...
Started by MiniMe on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Let me know if this helps.
Neither, I'd use:
SELECT t.id, t.name, CASE WHEN x.managerid IS NULL THEN 0 ELSE 1 END and not just a 0|1 but that is easy to change if you need the 1|0...
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What's an elegant way to unify X,Y with (1,2), (1,-2), (-1,2), (-1,-2), (2,1), (2,-1) , (-2,1), (-2,-1)?
Doing it this way seems error prone and tedious:
foo(1,2). foo(1,-2). foo(-1,-2). ... ... ...
And this way seems too expensive:
foo(X,Y) :- L = [1...
Started by Absolute0 on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
Foo(X,Y):- foo0(....
Look, it's easier and shorter to just write all the cases xD
foo0(X,Y):- member(X,[1,-1]), member(Y,[2,-2]).
A further development on what was commented:
generate_pairs_foo(X,Y) :- L = [1,-1,2,-2], member(X,L ...
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Possible Duplicate:
Why do programs in Unix-like environments have numbers after their name?
What does the (1) mean?
Started by AK on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
1 Executable programs or shell section -
1 General commands 2 System calls 3 C library functions 4 Special files (usually devices 8 System administration commands and daemons....
Numbers of the manual followed by the types of pages they contain .
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