大约有 43,100 项符合查询结果（耗时：0.0396秒） [XML]
What's the difference between tilde(~) and caret(^) in package.json?
...
19 Answers
19
Active
...
What is the best way to compute trending topics or tags?
...
11 Answers
11
Active
...
Regular expression for first and last name
...
|
edited Feb 17 '14 at 9:57
John Smith
47855 silver badges1818 bronze badges
answered Mar 5...
Why are these numbers not equal?
...ally true because some values which are simple, finite decimals (such as 0.1 and 0.05) are not represented exactly in the computer and so the results of arithmetic on them may not give a result that is identical to a direct representation of the "known" answer.
This is a well known limitation of co...
Why #define TRUE (1==1) in a C boolean macro instead of simply as 1?
...
156
This approach will use the actual boolean type (and resolve to true and false) if the compiler...
How can I plot with 2 different y-axes?
...
127
update: Copied material that was on the R wiki at http://rwiki.sciviews.org/doku.php?id=tips:g...
Set every cell in matrix to 0 if that row or column contains a 0
Given a NxN matrix with 0s and 1s. Set every row that contains a 0 to all 0 s and set every column that contains a 0 to all 0 s.
...
Ruby - elegantly convert variable to an array if not an array already
...
10 Answers
10
Active
...
How to convert floats to human-readable fractions?
Let's say we have 0.33 , we need to output 1/3 .
If we have 0.4 , we need to output 2/5 .
26 Answers
...