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Force R not to use exponential notation (e.g. e+10)?
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format(1e6, scientific=FALSE) returns "1000000" while as.character(1e6) returns "1e+06", so there is a difference between the two methods.
– mickey
Dec 4 '18 at 18:24
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Is there a simple way to delete a list element by value?
...y, numpy data in Cython. [@Gill's answer is O(n*n) unnecessarily (compare 1e6 and 1e12 – you don't want to risk the latter). while 1: L.remove(value) and return on ValueError might work well with a few values or small lists in CPython.
– jfs
Aug 23 '14 at 2:...
Does making a struct volatile make all its members volatile?
...t pointed to by the pointer as const or volatile, use a declaration of the form:
const char *cpch;
volatile char *vpch;
To declare the value of the pointer — that is, the actual address stored in the pointer — as const or volatile, use a declaration of the form:
char * const pchc;
char * vol...
What is the iBeacon Bluetooth Profile
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For an iBeacon with ProximityUUID E2C56DB5-DFFB-48D2-B060-D0F5A71096E0, major 0, minor 0, and calibrated Tx Power of -59 RSSI, the transmitted BLE advertisement packet looks like this:
d6 be 89 8e 40 24 05 a2 17 6e 3d 71 02 01 1a 1a ff 4c 00 02 15 e2 c5 6d b5 df fb 48 d2 b0 60 d0 f5 a7 10 ...
外部打开使用指导 · App Inventor 2 中文网
...android.intent.action.VIEW -d 'componentcase://device?id=42&name=%E4%BC%A0%E6%84%9F%E5%99%A8'
应由系统打开案例，事件区显示id 42、name 传感器。如果系统没有找到处理应用，请确认安装的是此案例独立包、设计器链接前缀为 componentcase，且重新编译...
PHP: How to remove all non printable characters in a string?
...Hot Tub Time Machine, and you're back in the eighties.
If you've got some form of 8 bit ASCII, then you might want to keep the chars in range 128-255. An easy adjustment - just look for 0-31 and 127
$string = preg_replace('/[\x00-\x1F\x7F]/', '', $string);
UTF-8?
Ah, welcome back to the 21st ce...
Best way to get application folder path
...s returns a path with a backslash at the end. This caused me problems when formatting a string with the result to pass as a process argument.
– avenmore
Nov 6 '15 at 12:18
20
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Unable to import a module that is definitely installed
... Not quite true, @MartijnPieters: if there was an import of the form "from <package> import <foo>", and if the obstructing package had no "foo", then you'd get an import error for option 3.
– Dan H
Apr 26 '16 at 21:38
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Calculating Distance between two Latitude and Longitude GeoCoordinates
... rad) {
return (rad / Math.PI * 180.0);
}
Console.WriteLine(distance(32.9697, -96.80322, 29.46786, -98.53506, "M"));
Console.WriteLine(distance(32.9697, -96.80322, 29.46786, -98.53506, "K"));
Console.WriteLine(distance(32.9697, -96.80322, 29.46786, -98.53506, "N"));
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How do I get the height and width of the Android Navigation Bar programmatically?
... devices without navigation bar. Tested on Samsung S2 and S3. I got 72 and 96.
– Egis
Apr 13 '15 at 14:38
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