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How to compare two floating point numbers in Bash?
...xpression between double parenthesis (( )) will translate these values to respectively true or false.
Please, ensure that the bc basic calculator package is installed.
This equally works for floats in scientific format, provided a capital letter E is employed, e.g. num1=3.44E6
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Maximum number of threads per process in Linux?
...h it. 2. You have to specify a thread's stack when creating it, this is irrespective of ulimit -s. It is very well possible (not sensible, but possible) to create as many threads as there are possible thread IDs. Under 64 bit Linux, it is even easily "possible" to create more threads than there are ...
How to make PDF file downloadable in HTML link?
...ints the data to the user's browser, then they can choose to save the PDF despite their browser settings. The pdf_server.php should look like this:
header("Content-Type: application/octet-stream");
$file = $_GET["file"] .".pdf";
header("Content-Disposition: attachment; filename=" . urlencode($fil...
Advantage of switch over if-else statement
...l probably outperform a compiler-generated jump table implementing switch, esp. in the not-special case where this will be a single not-taken branch.
– Peter Cordes
Sep 1 '15 at 22:45
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Does have to be in the of an HTML document?
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The linked article has vanished into the link rot æther, so here's the latest available archived version: web.archive.org/web/20150525042412/http://bluerobot.com/web/css/…
– Zachary Murray
Jan 26 '16 at 22:02
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How to repeat last command in python interpreter shell?
...r windows 10, python 3.6.1 as well. Thanks a lot, this is clean and clear, esp. useful for new learners.
– jyao
Apr 22 '17 at 21:03
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Is there any connection string parser in C#?
...in these cases) change the Where to
.Where(kvp => !string.IsNullOrWhitespace(kvp))
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How to enable C++11/C++0x support in Eclipse CDT?
...ke the accepted answer more complete.
– Inusable Lumière
Nov 27 '13 at 15:45
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Easy interview question got harder: given numbers 1..100, find the missing number(s) given exactly k
...omial (x-a1)...(x-ak) the coefficients will be exactly c1, ..., ck - see Viète's formulas. Since every polynomial factors uniquely (ring of polynomials is an Euclidean domain), this means ai are uniquely determined, up to permutation.
This ends a proof that remembering powers is enough to recover ...
iterating over each character of a String in ruby 1.8.6 (each_char)
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Extending la_f0ka's comment, esp. if you also need the index position in your code, you should be able to do
s = 'ABCDEFG'
for pos in 0...s.length
puts s[pos].chr
end
The .chr is important as Ruby < 1.9 returns the code of the character at that...