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Lua简明教程 - 脚本技术 - 清泛IT论坛，有思想、有深度
...这是块注释
这是块注释
变量Lua的数字只有double型，64bits，你不必担心Lua处理浮点数会慢（除非大于100,000,000,000,000），或是会有精度问题。你可以以如下的方式表示数字，0x开头的16进制和C是很像的。num = 1024
num = 3.0
num = 3.1...
Javascript calculate the day of the year (1 - 366)
...for another 200,000 years. The largest date supported by Date is new Date(8640000000000000), which is still less than Number.MAX_SAFE_INTEGER. see this answer: stackoverflow.com/a/11526569/18511
– Kip
Aug 4 at 16:35
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PHP shell_exec() vs exec()
...0.255 Mask:255.255.255.0\n inet6 addr: fe80::12bf:ffff:eeee:2222/64 Scope:Link\n UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1\n RX packets:16264200 errors:0 dropped:1 overruns:0 frame:0\n TX packets:7205647 errors:0 dropped:0 overruns:0 carrier:0\n ...
Is it faster to count down than it is to count up?
... sigfpesigfpe
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C# Thread safe fast(est) counter
..." statement and its variable is directly incremented (x86) or "added" to (x64).
This "bus lock" statement locks the bus to prevent another CPU from accessing the bus while the calling CPU does its operation. Now, take a look at the C# lock() statement's IL. Here you will see calls to Monitor in...
IIS Express Immediately shutting-down running site after stopping web application
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64
Instead of hitting the (X) STOP button, you can use the Detach all menu item in the Debug menu....
The quest for the Excel custom function tooltip
...my Excel 2013 / Windows 8 machine. I've tested on one other configuration (64-bit Excel 2010 on Windows Server 2008) and had a serious problems.
For a C# function defined with the Excel-DNA attributes like this:
[ExcelFunction(Description =
"A useful test function that adds two numbers, and r...
python generator “send” function purpose?
...8
>>> c.next()
16
>>> c.next()
32
>>> c.send(8)
64
>>> c.send(8)
128
>>> c.send(8)
256
Now here is how you would do the same type of function using send, so on each iteration you can change the value of number:
def double_number(number):
while True...
General suggestions for debugging in R
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Ari B. FriedmanAri B. Friedman
64.3k3131 gold badges164164 silver badges225225 bronze badges
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Calculate the median of a billion numbers
...e too long; a billion numbers is only 4 GB for 32-bit ints/floats, 8GB for 64-bit ints/doubles. Neither seems tremendously taxing.
– DrPizza
Aug 3 '15 at 6:01
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