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Why are floating point numbers inaccurate?

...icand). A very simple number, say 9.2, is actually this fraction: 5179139571476070 * 2 -49 Where the exponent is -49 and the mantissa is 5179139571476070. The reason it is impossible to represent some decimal numbers this way is that both the exponent and the mantissa must be integers. In othe...
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JavaScript OR (||) variable assignment explanation

...| edited Feb 5 '12 at 20:43 Lightness Races in Orbit 350k6666 gold badges574574 silver badges955955 bronze badges ...
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How to prevent that the password to decrypt the private key has to be entered every time when using

...ooks like: Welcome to Git (version 1.7.8-preview20111206) (etc) Agent pid 3376 Enter passphrase for /c/Users/starmonkey/.ssh/id_dsa: Identity added: /c/Users/starmonkey/.ssh/id_dsa (/c/Users/starmonkey/.ssh/id_dsa) And now I can ssh to other servers without logging in every time. ...
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How to create an empty file at the command line in Windows?

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Does using “new” on a struct allocate it on the heap or stack?

... 310 Okay, let's see if I can make this any clearer. Firstly, Ash is right: the question is not ab...
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小心!创业者不可不知的互联网家装惊天伪命题 - 资讯 - 清泛网 - 专注C/C++...

小心!创业者不可不知的互联网家装惊天伪命题互联网家装的伪命题与其他行业的伪命题一样,都会在一定程度上蒙蔽我们的双眼,影响我们对于它们的真实判断。只有真正了解这些伪命题,才能在创业的路上少走弯路,才能知...
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Fast way to discover the row count of a table in PostgreSQL

... 231 Counting rows in big tables is known to be slow in PostgreSQL. To get a precise number it has t...
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Reusing output from last command in Bash

... | edited Nov 1 '19 at 21:36 Boris 4,70255 gold badges4242 silver badges5252 bronze badges answered Sep ...
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Why use iterators instead of array indices?

... | edited Oct 10 '19 at 13:08 einpoklum 76.5k3535 gold badges190190 silver badges393393 bronze badges a...
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Ruby: require vs require_relative - best practice to workaround running in both Ruby =1.

... | edited Oct 5 '12 at 20:34 the Tin Man 147k3131 gold badges192192 silver badges272272 bronze badges an...