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What does glLoadIdentity() do in OpenGL?
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139
The identity matrix, in terms of the projection and modelview matrices, essentially resets the...
Python json.loads shows ValueError: Extra data
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153
As you can see in the following example, json.loads (and json.load) does not decode multiple j...
How to pipe stdout while keeping it on screen ? (and not to a output file)
...ty | foo
Reference: The Open Group Base Specifications Issue 7
IEEE Std 1003.1, 2013 Edition, §10.1:
/dev/tty
Associated with the process group of that process, if any. It is
useful for programs or shell procedures that wish to be sure of
writing messages to or reading data from the...
std::shared_ptr thread safety explained
...e only newly created object?
is incorrect. Only d will point to the new A(10), and a, b, and c will continue to point to the original A(1). This can be seen clearly in the following short example.
#include <memory>
#include <iostream>
using namespace std;
struct A
{
int a;
A(int a)...
How can I plot separate Pandas DataFrames as subplots?
...rt matplotlib.pyplot as plt
fig, axes = plt.subplots(nrows=2, ncols=2)
df1.plot(ax=axes[0,0])
df2.plot(ax=axes[0,1])
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Here axes is an array which holds the different subplot axes, and you can access one just by indexing axes.
If you want a shared x-axis, then you can provide sharex=True to pl...
Where is the “Fold” LINQ Extension Method?
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127
You will want to use the Aggregate extension method:
double product = doubles.Aggregate(1.0, ...
Python list iterator behavior and next(iterator)
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199
What you see is the interpreter echoing back the return value of next() in addition to i being...
JNI converting jstring to char *
...wikipedia.org/wiki/Java_Native_Interface
http://download.oracle.com/javase/1.5.0/docs/guide/jni/spec/functions.html
concerning your problem you can use this
JNIEXPORT void JNICALL Java_ClassName_MethodName(JNIEnv *env, jobject obj, jstring javaString)
{
const char *nativeString = env->Ge...
R apply function with multiple parameters
I have a function f(var1, var2) in R. Suppose we set var2 = 1 and now I want to apply the function f() to the list L . Basically I want to get a new list L* with the outputs
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Streaming a video file to an html5 video player with Node.js so that the video controls continue to
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117
The Accept Ranges header (the bit in writeHead()) is required for the HTML5 video controls to ...