大约有 16,000 项符合查询结果(耗时:0.0198秒) [XML]
Difference between float and decimal data type
...
This is what I found when I had this doubt.
mysql> create table numbers (a decimal(10,2), b float);
mysql> insert into numbers values (100, 100);
mysql> select @a := (a/3), @b := (b/3), @a * 3, @b * 3 from numbers \G
*************************** 1. row ***...
Move an array element from one array position to another
...e previous version of this answer (that modified Array.prototype.move) can be found on npm at array.prototype.move.
I had fairly good success with this function:
function array_move(arr, old_index, new_index) {
if (new_index >= arr.length) {
var k = new_index - arr.length + ...
How does this program work?
It displays a 0 !! How is that possible? What is the reasoning?
13 Answers
13
...
ignoring any 'bin' directory on a git project
...
Before version 1.8.2, ** didn't have any special meaning in the .gitignore. As of 1.8.2 git supports ** to mean zero or more sub-directories (see release notes).
The way to ignore all directories called bin anywhere below th...
Java Multiple Inheritance
...an attempt to fully understand how to solve Java's multiple inheritance problems I have a classic question that I need clarified.
...
Regular expression for exact match of a string
...or example I have two inputs "123456" and "1234567" then the result should be not match (false). And when I have entered "123456" and "123456" then the result should be match (true).
...
What is the role of the bias in neural networks? [closed]
I'm aware of the gradient descent and the back-propagation algorithm. What I don't get is: when is using a bias important and how do you use it?
...
What is the meaning of the 'g' flag in regular expressions?
What is the meaning of the g flag in regular expressions?
9 Answers
9
...
Java Stanford NLP: Part of Speech labels?
...
The Penn Treebank Project. Look at the Part-of-speech tagging ps.
JJ is adjective. NNS is noun, plural. VBP is verb present tense. RB is adverb.
That's for english. For chinese, it's the Penn Chinese Treebank. And for german it's the NE...
How do I make a list of data frames?
...
This isn't related to your question, but you want to use = and not <- within the function call. If you use <-, you'll end up creating variables y1 and y2 in whatever environment you're working in:
d1 <- data.frame(y1 <- c(1, 2, 3), y2 <- c(4, 5, ...
