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Why does Math.round(0.49999999999999994) return 1?
... // 3fdfffffffffffff
print(a+b); // 3ff0000000000000
print(1.0); // 3ff0000000000000
}
This is because 0.49999999999999994 has a smaller exponent than 0.5, so when they're added, its mantissa is shifted, and the ULP gets bigger.
The solution
Since Java 7, OpenJDK (for example)...
How to Publish Web with msbuild?
...ansformation), and copy the output to my staging server
<?xml version="1.0" encoding="utf-8" ?>
<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup>
<Configuration Condition=" '$(Configuration)' == '' ">Rele...
Dynamically Changing log4j log level
...re than 5 seconds have passed since the last log event.
<?xml version="1.0" encoding="UTF-8" ?>
<Configuration status="warn" monitorInterval="5" name="tryItApp" packages="">
<Appenders>
<RollingFile name="MY_TRY_IT"
fileName="/var/log/tryIt.log...
How do I debug error ECONNRESET in Node.js?
...ror: ")
console.log(err.stack)
)
socket.write("<?xml version=\"1.0\"?>\n")
socket.write("<!DOCTYPE cross-domain-policy SYSTEM \"http://www.macromedia.com/xml/dtds/cross-domain-policy.dtd\">\n")
socket.write("<cross-domain-policy>\n")
socket.write("<allow-access-fr...
Is there anyway to exclude artifacts inherited from a parent POM?
...gt;
<groupId>es.uniovi.innova</groupId>
<version>1.0.0</version>
<packaging>pom</packaging>
<dependencies>
<dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
...
adding noise to a signal in python
...('AB'), dtype=float)
print(clean_signal)
"""
print output:
A B
0 1.0 2.0
1 3.0 4.0
"""
import numpy as np
mu, sigma = 0, 0.1
# creating a noise with the same dimension as the dataset (2,2)
noise = np.random.normal(mu, sigma, [2,2])
print(noise)
"""
print output:
array([[-0.1111431...
Git Extensions: Win32 error 487: Couldn't reserve space for cygwin's heap, Win32 error 0
...ngbloms.se/archives/1403
c:\msysgit\bin>rebase.exe -b 0x50000000 msys-1.0.dll
For me solution was slightly different. It was
C:\Program Files (x86)\Git\bin>rebase.exe -b 0x50000000 msys-1.0.dll
Before you rebase dlls, you should make sure it is not in use:
tasklist /m msys-1.0.dll
A...
Why can't (or doesn't) the compiler optimize a predictable addition loop into a multiplication?
... invalid optimisations (for example, a couple of years ago, I had an ICC (11.0, iirc) use signed-32-bit-int-to-double conversion in 1.0/n where n was an unsigned int. Was about twice as fast as gcc's output. But wrong, a lot of values were larger than 2^31, oops.).
...
Examples of GoF Design Patterns in Java's core libraries
...pools - Flyweight is really about management of shared resources)
The Java 1.0 event model is an example of Chain of Responsibility, as are Servlet Filters.
Iterator pattern in Collections Framework
Nested containers in AWT/Swing use the Composite pattern
Layout Managers in AWT/Swing are an example ...
JPA : How to convert a native query result set to POJO class collection
...returns from your native query into an Entity or a custom class.
EDIT JPA 1.0 does not allow mapping to non-entity classes. Only in JPA 2.1 a ConstructorResult has been added to map return values a java class.
Also, for OP's problem with getting count it should be enough to define a result set map...