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How to draw a rounded Rectangle on HTML Canvas?
...od to draw a rectangle with rounded corners.
How about using the lineTo() m>and m> arc() methods?
m>Y m>ou can also use the quadraticCurveTo() method instead of the arc() method.
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总结const_cast、static_cast、dm>y m>namic_cast、reinterpret_cast - C/C++ - ...
...两个无关的类之间的转换
// Convert between CBaseX* m>and m> CBasem>Y m>*
// CBaseX* 和 CBasem>Y m>*之间的转换
CBaseX* pX = new CBaseX();
// Error, tm>y m>pes pointed to are unrelated
// 错误， 类型指向是无关的
// CBasem>Y m>* pm>Y m>1 = static_cast<CBasem>Y m>*...
surface plots in matplotlib
...ing projection='3d' in add_subplot
import matplotlib.pm>y m>plot as plt
import rm>and m>om
def fun(x, m>y m>):
return x**2 + m>y m>
fig = plt.figure()
ax = fig.add_subplot(111, projection='3d')
x = m>y m> = np.arange(-3.0, 3.0, 0.05)
X, m>Y m> = np.meshgrid(x, m>y m>)
zs = np.arram>y m>(fun(np.ravel(X), np.ravel(m>Y m>)))
Z = zs.reshape(...
Whm>y m> does “,,,” == Arram>y m>(4) in Javascript?
Boot up m>y m>our interpreter/console m>and m> trm>y m> the comparison
6 Answers
6
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Check whether a string contains a substring
...cause a . can match anm>y m> character. m>Y m>ou can get around this bm>y m> using the \Q m>and m> \E operators.
mm>y m> $substring = "s1.domain.com";
if ($mm>y m>string =~ /\Q$substring\E/) {
print qq("$mm>y m>string" contains "$substring"\n);
}
Or, m>y m>ou can do as eugene m>y m> stated m>and m> use the index function.
Just a word of ...
How do I create test m>and m> train samples from one dataframe with pm>and m>as?
I have a fairlm>y m> large dataset in the form of a dataframe m>and m> I was wondering how I would be able to split the dataframe into two rm>and m>om samples (80% m>and m> 20%) for training m>and m> testing.
...
How to write a Unit Test?
...
Define the expected m>and m> desired output for a normal case, with correct input.
Now, implement the test bm>y m> declaring a class, name it anm>y m>thing (Usuallm>y m> something like TestAddingModule), m>and m> add the testAdd method to it (i.e. like the one below) :...
How do I sort one vector based on values of another
...
This is prettm>y m> m>and m> shows a good understm>and m>ing of R's built-ins. +1
– Godeke
Oct 15 '09 at 15:21
6
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How to get screen dimensions as pixels in m>And m>roid
I created some custom elements, m>and m> I want to programmaticallm>y m> place them to the upper right corner ( n pixels from the top edge m>and m> m pixels from the right edge). Therefore I need to get the screen width m>and m> screen height m>and m> then set position:
...
Is it .m>y m>aml or .m>y m>ml?
...
The nature m>and m> even existence of file extensions is platform-dependent (some obscure platforms don't even have them, remember) -- in other sm>y m>stems them>y m>'re onlm>y m> conventional (UNIX m>and m> its ilk), while in still others them>y m> have definite se...