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What's the difference between a single precision and double precision floating point operation?
...ro and S is 0, then V=Infinity
If 0<E<255 then V=(-1)**S * 2 ** (E-127) * (1.F) where "1.F" is
intended to represent the binary number created by prefixing F with an
implicit leading 1 and a binary point.
If E=0 and F is nonzero, then V=(-1)**S * 2 ** (-126) * (0.F). These
are "unnormalized" ...
How to build a Debian/Ubuntu package from source?
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78
you can use the special package "checkinstall" for all packages which are not even in debian/ub...
How to send PUT, DELETE HTTP request in HttpURLConnection?
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179
To perform an HTTP PUT:
URL url = new URL("http://www.example.com/resource");
HttpURLConnectio...
How do I round to the nearest 0.5?
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answered Aug 25 '09 at 16:37
John RaschJohn Rasch
55.9k1919 gold badges9999 silver badges135135 bronze badges
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Creating anonymous objects in php
...e years, but I think I need to keep the information up to date!
Since PHP 7 it has been possible to create anonymous classes, so you're able to do things like this:
<?php
class Foo {}
$child = new class extends Foo {};
var_dump($child instanceof Foo); // true
?>
You can read...
How do I read from parameters.yml in a controller in symfony2?
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7 Answers
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Active
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Get Android .apk file VersionName or VersionCode WITHOUT installing apk
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edited Feb 7 '17 at 18:08
ToolmakerSteve
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Cosmic Rays: what is the probability they will affect a program?
...or per 256 megabytes of RAM per month.[15]
This means a probability of 3.7 × 10-9 per byte per month, or 1.4 × 10-15 per byte per second. If your program runs for 1 minute and occupies 20 MB of RAM, then the failure probability would be
60 × 20 × 1024²
1 - (1 - 1.4e-15) ...
How to open, read, and write from serial port in C?
...locking (fd, 0); // set no blocking
write (fd, "hello!\n", 7); // send 7 character greeting
usleep ((7 + 25) * 100); // sleep enough to transmit the 7 plus
// receive 25: approx 100 uS per char transmit
char buf [100];
int ...