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How to round the minute of a datetime object
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Check variable equality against a list of values
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How to check if a process id (PID) exists
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C# Double - ToString() formatting with two decimal places but no rounding
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Format decimal for percentage values?
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answered Nov 24 '09 at 15:56
Michael HarenMichael Haren
93.9k3939 gold badges157157 silver badges198198 bronze badges
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Difference between var_dump,var_export & print_r
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var_dump is for debugging purposes. var_dump always prints the result.
// var_dump(array('', ...
Getting image dimensions without reading the entire file
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Your best bet as always is to find a well tested library. However, you said that is difficult,...
Make Iframe to fit 100% of container's remaining height
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Update in 2019
TL;DR: Today the best option is the last one in this answer - flexbox. Everything supports it nicely and has for years. Go for that and don't look back. The rest of this answer is left for historical reasons.
The trick...
What is more efficient? Using pow to square or just multiply it with itself?
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std::cout << elapsed << " "; \
\
return x; \
}
TEST(1, b)
TEST(2, b*b)
TEST(3, b*b*b)
TEST(4, b*b*b*b)
TEST(5, b*b*b*b*b)
template <int exponent>
double testpow(double base, long loops)
{
double x = 0.0;
boost::posix_time::ptime startTime = now();
for (long...
Python中的X[:,0]和X[:,1] - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
Python中的X[:,0]和X[:,1]X[:,0]是numpy中数组的一种写法，表示对一个二维数组，取该二维数组第一维中的所有数据，第二维中取第0个数据，直观来说，X[:,0]就是取所有 X[:,0]是numpy中数组的一种写法，表示对一个二维数组，取该二维...