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Modular multiplicative inverse function in Python

...: I'm the current maintainer of the gmpy library. Updated answer 2 gmpy2 now properly raises an exception when the inverse does not exists: >>> import gmpy2 >>> gmpy2.invert(0,5) Traceback (most recent call last): File "<stdin>", line 1, in <module> ZeroDivisionEr...
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Run R script from command line

...ipt, using the same interpreter that interprets your commands. It doesn't know its supposed to be R, even if the file ends in a .R or .r suffix. The #! tells the command line what language is contained in the file. – Spacedman Aug 19 '13 at 6:54 ...
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Format numbers in django templates

...end(value[-decimal_points:]) value = value[:-decimal_points] # now we should have parts = ['345', '12'] parts.reverse() # and the return value should be u'12.345' return seperator.join(parts) Creating a custom template filter from this function is trivial. ...
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How to get the name of the current method from code [duplicate]

I know you can do 8 Answers 8 ...
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LIMIT 10..20 in SQL Server

...le in Microsoft SQL Server 2005 and later. This is the best solution (for now) that works solely as part of the query. Another solution is to use TOP to fetch the first count + offset rows, and then use the API to seek past the first offset rows. See also: "Emulate MySQL LIMIT clause in Microso...
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Fastest method to replace all instances of a character in a string [duplicate]

... "b", true); // bb "Hello???".replaceAll("?", "!"); // Hello!!! Let me know if you can break it, or you have something better, but make sure it can pass these 4 tests. share | improve this answer...
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Javascript: How to loop through ALL DOM elements on a page?

...tead This would certainly speed up matters for modern browsers. Browsers now support foreach on NodeList. This means you can directly loop the elements instead of writing your own for loop. document.querySelectorAll('*').forEach(function(node) { // Do whatever you want with the node object. })...
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How to simulate a click with JavaScript?

... Event.initEvent is now deprecated developer.mozilla.org/en/docs/Web/API/Event/initEvent – artnikpro Mar 2 '17 at 11:39 ...
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How to replace a hash key with another key

...er the question. The post states that the keys which need replacing are unknown... We only know that they begin with an underscore, we don't know what the keys actually are. – Dsel Aug 21 '15 at 6:11 ...
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gem install: Failed to build gem native extension (can't find header files)

... Fedora 14 and I have MySQL and MySQL server 5.1.42 installed and running. Now I tried to do this as root user: 18 Answers ...