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Concatenating string and integer in python
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answered Jul 19 '12 at 10:43
user647772user647772
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Sass negative variable value?
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Try it like this
margin: 0 (-$pad) 20px (-$pad);
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Java rounding up to an int using Math.ceil
Why does it still return 4? 157/32 = 4.90625 , I need to round up, I've looked around and this seems to be the right method.
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Maven: best way of linking custom external JAR to my project?
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209
You can create an In Project Repository, so you don't have to run mvn install:install-file eve...
Pandas conditional creation of a series/dataframe column
...here(df['Set']=='Z', 'green', 'red')
print(df)
yields
Set Type color
0 Z A green
1 Z B green
2 X B red
3 Y C red
If you have more than two conditions then use np.select. For example, if you want color to be
yellow when (df['Set'] == 'Z') & (df['Type'] == ...
Why is transposing a matrix of 512x512 much slower than transposing a matrix of 513x513?
...t has 4 lines, each holding 64 bytes. We first attempt to read the address 0x2710, which goes in set 28. And then we also attempt to read addresses 0x2F00, 0x3700, 0x3F00 and 0x4700. All of these belong to the same set. Before reading 0x4700, all lines in the set would have been occupied. Reading th...
JavaScript “new Array(n)” and “Array.prototype.map” weirdness
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130
It appears that the first example
x = new Array(3);
Creates an array with undefined pointers....
John Carmack's Unusual Fast Inverse Square Root (Quake III)
...ates the inverse square root of a float, 4x faster than regular (float)(1.0/sqrt(x)) , including a strange 0x5f3759df constant. See the code below. Can someone explain line by line what exactly is going on here and why this works so much faster than the regular implementation?
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How to get a pixel's x,y coordinate color from an image?
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202
Building on Jeff's answer, your first step would be to create a canvas representation of your P...
JNI converting jstring to char *
...pedia.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->GetStr...