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What is the difference between float and double?
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Huge difference.
As the name implies, a double has 2x the precision of float[1]. In general a double has 15 decimal digits of precision, while float has 7.
Here's how the number of digits are calculated:
double has 52 mantissa bits + 1 hidden bit: lo...
WPF Textblock, linebreak in Text attribute
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I know this is ressurecting an old question, but I had the same problem. The solution for me was to use HTML encoded line feeds (
).
Line1
Line2
Looks like
Line1
Line2
For more of the HTML encoded characters check out w3schools
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CodeIgniter activerecord, retrieve last insert id?
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Shame on me...
I looked at the user guide and the first function is $this->db->insert_id();
This also works with activerecord inserts...
EDIT: I updated the link
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What does $$ (dollar dollar or double dollar) mean in PHP?
...ample, if you consider this portion of code :
$real_variable = 'test';
$name = 'real_variable';
echo $$name;
You will get the following output :
test
Here :
$real_variable contains test
$name contains the name of your variable : 'real_variable'
$$name mean "the variable thas has its name co...
What is token-based authentication?
I want to understand what token-based authentication means. I searched the internet but couldn't find anything understandable.
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Merge two Git repositories without breaking file history
I need to merge two Git repositories into a brand new, third repository. I've found many descriptions of how to do this using a subtree merge (for example Jakub Narębski's answer on How do you merge two Git repositories? ) and following those instructions mostly works, except that when I commit...
How to learn R as a programming language [closed]
...e that you read "The R Inferno".
There are many good resources on the R homepage, but in particular, read "An Introduction to R" and "The R Language Definition".
Some very closely related stackoverflow questions:
books-for-learning-the-r-language.
what-are-some-good-books-web-resources-and-proje...
What is the difference between MOV and LEA?
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LEA means Load Effective Address
MOV means Load Value
In short, LEA loads a pointer to the item you're addressing whereas MOV loads the actual value at that address.
The purpose of LEA is to allow one to perform a non-trivial ...
In tmux can I resize a pane to an absolute value
...age: resize-pane [-DLRUZ] [-x width] [-y height] [-t target-pane]
[adjustment]
ie.
resize-pane -t 1 -y 5
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Recommended way to insert elements into map [duplicate]
I was wondering, when I insert element into map, what is the recommended way. Should I
4 Answers
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