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Compare double to zero using epsilon
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Assuming 64-bit IEEE double, there is a 52-bit mantissa and 11-bit exponent. Let's break it to bits:
1.0000 00000000 00000000 00000000 00000000 00000000 00000000 × 2^0 = 1
The smallest representable number greater than 1:
1.0000 00000000 00000000 00000000 00000000 00000000 00000001 × 2^...
Best way to do multi-row insert in Oracle?
...g makes more sense if you put "union all" at the end of each select line (except for the last).
– Jamie
Apr 25 '17 at 20:34
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Emacs bulk indent for Python
Working with Python in Emacs if I want to add a try/except to a block of code, I often find that I am having to indent the whole block, line by line. In Emacs, how do you indent the whole block at once.
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SLF4J: Failed to load class “org.slf4j.impl.StaticLoggerBinder”. error
.... I tried to repeat the problem in Windows and Ubuntu and it gave me the exact same error. Numerous configurations of the slf4j-api and logback were tested but none seem to work.
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Is .NET/Mono or Java the better choice for cross-platform development? [closed]
...orms than Mono. Also, Mono is starting to see some much improved tooling (Xamarin), and Microsoft seems to have a much more cross-platform kind of attitude and willingness to work with partners to make them complimentary, rather than competitive (for example, Mono will be a pretty important part of...
Distinct() with lambda?
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Excellent! This is really easy to encapsulate in an extension method too, like DistinctBy (or even Distinct, since the signature will be unique).
– Tomas Aschan
Jul 27 '11 at 11:33
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What is the Swift equivalent of respondsToSelector?
.... This allows you to call a method on an object if and only if the object exists (not nil) and the method is implemented.
In the case where you still need respondsToSelector:, it is still there as part of the NSObject protocol.
If you are calling respondsToSelector: on an Obj-C type in Swift, then...
Unloading classes in java?
... class for every JAR file.
And create a new, MultiClassloader class that extends Classloader. This class internally would have an array (or List) of JarClassloaders, and in the defineClass() method would iterate through all the internal classloaders until a definition can be found, or a NoClassDef...
How to write LaTeX in IPython Notebook?
How can I display LaTeX code in a IPython Notebook?
13 Answers
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Formatting floats without trailing zeros
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Me, I'd do ('%f' % x).rstrip('0').rstrip('.') -- guarantees fixed-point formatting rather than scientific notation, etc etc. Yeah, not as slick and elegant as %g, but, it works (and I don't know how to force %g to never use scientific notation...