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What characters are valid for JavaScript variable names?
... screwed up all the time. Keep your public identifiers in the 32-126 ASCII range where it's safe.
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The difference between bracket [ ] and double bracket [[ ]] for accessing the elements of a list or
...objects they return when used for extraction and whether they may accept a range of values, or just a single value during assignment.
Consider the case of data extraction on the following list:
foo <- list( str='R', vec=c(1,2,3), bool=TRUE )
Say we would like to extract the value stored by bo...
What do hjust and vjust do when making a plot using ggplot?
...kham, page 196
(Yes, I know that in most cases you can use it beyond this range, but don't expect it to behave in any specific way. This is outside spec.)
hjust controls horizontal justification and vjust controls vertical justification.
An example should make this clear:
td <- expand.grid(
...
Converting a Uniform Distribution to a Normal Distribution
...ing the log). Even if clamped to [-6, 6] the chances of being outside this range are about 1.98e-9, good enough for most people even in science. For the 8.57 and 9.41 figures this becomes 1.04e-17 and 4.97e-21. These numbers are so small that the difference between a Box Muller sampling and a true g...
What is the significance of 1/1/1753 in SQL Server?
...al differences and simply use the Gregorian Calendar.
So with the greater range of datetime2
SELECT CONVERT(VARCHAR, DATEADD(DAY,-5,CAST('1752-09-13' AS DATETIME2)),100)
Returns
Sep 8 1752 12:00AM
One final point with the datetime2 data type is that it uses the proleptic Gregorian calendar p...
List of ANSI color escape sequences
...in and Paul Kay used data collected from twenty different languages from a range of language families to identify eleven possible basic color categories: white, black, red, green, yellow, blue, brown, purple, pink, orange, and gray.
Berlin and Kay found that, in languages with fewer than the maximum...
No == operator found while comparing structs in C++
...a union to compare
normalisation: for example, date types may allow out-of-range day-of-month or month-of-year, or a rational/fraction object may have 6/8ths while another has 3/4ers, which for performance reasons they correct lazily with a separate normalisation step; you may have to decide whether...
Including Google Web Fonts link or import?
...ic.com/s/lato/v14/S6uyw4BMUTPHjx4wXiWtFCc.woff2) format('woff2');
unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
font-family: 'Quicksand';
font-style: normal;...
Turn a number into star rating display using jQuery and CSS
...arseFloat($(this).html());
// Make sure that the value is in 0 - 5 range, multiply to get width
var size = Math.max(0, (Math.min(5, val))) * 16;
// Create stars holder
var $span = $('<span />').width(size);
// Replace the numerical value with stars
...
NVIDIA vs AMD: GPGPU performance
...limited x86 without SSE for now
NVIDIA and CUDA still have the edge in the range of libraries available. However they may not be focusing on OpenCL as much as they did before.
In short OpenCL has closed the gap in the past two years. There are new players in the field. But CUDA is still a bit ahea...