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How to evaluate a math expression given in string form?

I'm trying to write a Java routine to evaluate math expressions from String values like: 25 Answers ...
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Pandas - Get first row value of a given column

...sus a copy, assignments that use chained indexing generally always raise a SettingWithCopyWarning even though in this case the assignment succeeds in modifying df: In [22]: df = pd.DataFrame({'foo':list('ABC')}, index=[0,2,1]) In [24]: df['bar'] = 100 In [25]: df['bar'].iloc[0] = 99 /home/unutbu/da...
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Inline labels in Matplotlib

...elLine are passed on to the text function call (some keyword arguments are set if the calling code chooses not to specify). Issues Annotation bounding boxes sometimes interfere undesirably with other curves. As shown by the 1 and 10 annotations in the top left plot. I'm not even sure this can be ...
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Example JavaScript code to parse CSV data

...ompletely configurable. music = $.csv.toArrays(csv, { delimiter: "'", // Sets a custom value delimiter character separator: ';', // Sets a custom field separator character }); Update 2: It now works with jQuery on Node.js too. So you have the option of doing either client-side or server-side pa...
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Why use the SQL Server 2008 geography data type?

...SQL by Paul Burrows BCIS */ DECLARE @C_RADIUS_EARTH_KM As Decimal(38, 19) SET @C_RADIUS_EARTH_KM = 6370.97327862 DECLARE @C_RADIUS_EARTH_MI As Decimal(38, 19) SET @C_RADIUS_EARTH_MI = 3958.73926185 DECLARE @C_PI As Decimal(38, 19) SET @C_PI = pi() DECLARE @Lat1 As Decimal(38, 19) DECLARE @Lat2 ...
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Functional programming vs Object Oriented programming [closed]

...ware evolution: Object-oriented languages are good when you have a fixed set of operations on things, and as your code evolves, you primarily add new things. This can be accomplished by adding new classes which implement existing methods, and the existing classes are left alone. Functional langua...
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Why doesn't .NET/C# optimize for tail-call recursion?

I found this question about which languages optimize tail recursion. Why C# doesn't optimize tail recursion, whenever possible? ...
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Fancybox doesn't work with jQuery v1.9.0 [ f.browser is undefined / Cannot read property 'msie' ]

Fancybox breaks with the new jQuery v1.9.0. 4 Answers 4 ...
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Reusable library to get human readable version of file size?

... you remove TiB from the list and add an else clause to your for loop that sets unit = "TiB". – Russell Davis Jul 16 at 21:30 ...
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Git - Undo pushed commits

...I've been making some commited changes already pushed to remote and pulled from the server. Now, I want to undo those changes. So I could just git checkout to the commit before the changes and commit the new changes, but I'm guessing that there will be problems to push them again to remote. Any su...