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How do I use floating-point division in bash?
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you can do this:
bc <<< 'scale=2; 100/3'
33.33
UPDATE 20130926 : you can use:
bc -l <<< '100/3' # saves a few hits
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In JavaScript, is returning out of a switch statement considered a better practice than using break?
...g:
var foo = "bar";
if(foo == "bar") {
return 0;
}
else {
return 100;
}
Based on this, the argument could be made that option one is better practice.
In short, there's no clear answer, so as long as your code adheres to a consistent, readable, maintainable standard - that is to say don'...
Find nearest value in numpy array
... sorted array then the bisection code (given below) performs the fastest. ~100-1000 times faster for large arrays, and ~2-100 times faster for small arrays. It does not require numpy either.
If you have an unsorted array then if array is large, one should consider first using an O(n logn) sort and ...
Convert Rows to columns using 'Pivot' in SQL Server
...a';
Begin
Declare @query varchar(max)='';
Declare @aggDet varchar(100);
Declare @opp_agg varchar(5);
Declare @col_agg varchar(100);
Declare @pivot_col sysname;
Declare @query_col_pvt varchar(max)='';
Declare @full_query_pivot varchar(max)='';
Declare @ind_tmpTbl int;...
How to apply multiple transforms in CSS?
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transform:translate(100px,100px) rotate(45deg) translate(100px,100px) rotate(45deg); equals transform:translate(200px,200px) rotate(90deg) ,the last one will add
– bigCat
Mar 17 '15 at 14:47
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How to show Page Loading div until the page has finished loading?
...dd the style class for the div and image to your CSS:
#loading {
width: 100%;
height: 100%;
top: 0;
left: 0;
position: fixed;
display: block;
opacity: 0.7;
background-color: #fff;
z-index: 99;
text-align: center;
}
#loading-image {
position: absolute;
top: 100px;
left: 24...
How do you get the magnitude of a vector in Numpy?
...imeit.timeit('np.linalg.norm(x)', setup='import numpy as np; x = np.arange(100)', number=1000)
0.0450878
>>> timeit.timeit('np.sqrt(x.dot(x))', setup='import numpy as np; x = np.arange(100)', number=1000)
0.0181372
EDIT: The real speed improvement comes when you have to take the norm of m...
What are the options for storing hierarchical data in a relational database? [closed]
...ettle for one or the other especially if there are more than, say, a lousy 100,000 nodes or so. Using the push stack method can take a whole day to do the conversion on what MLM'ers would consider to be a small million node hierarchy.
I thought I'd give Celko a bit of competition by coming up with...
How much does it cost to develop an iPhone application? [closed]
...
1007
votes
I'm one of the developers for Twitterrific and to be honest, I can't tell ...
How to embed a SWF file in an HTML page?
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<object width="100" height="100">
<param name="movie" value="file.swf">
<embed src="file.swf" width="100" height="100">
</embed>
</object>
...