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Python division
...hat always pops in my head when I am doing arithmetic operations (should I convert to float and which number), an example from that aspect is presented:
>>> a = 1/2/3/4/5/4/3
>>> a
0
When we divide integers, not surprisingly it gets lower rounded.
>>> a = 1/2/3/4/5/4/f...
SQL query for finding records where count > 1
...AYMENT . Within this table I have a user ID, an account number, a ZIP code and a date. I would like to find all records for all users that have more than one payment per day with the same account number.
...
ASP.NET MVC - Set custom IIdentity or IPrincipal
...to extend the default so that I can call something like User.Identity.Id and User.Identity.Role . Nothing fancy, just some extra properties.
...
Unnamed/anonymous namespaces vs. static functions
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The C++ Standard reads in section 7.3.1.1 Unnamed namespaces, paragraph 2:
The use of the static keyword is
deprecated when declaring objects in a
namespace scope, the unnamed-namespace
provides a superior alternative.
...
UITextfield leftView/rightView padding on iOS7
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cannot convert value of type 'string' to expected argument type 'UIImage?"
– user4203956
Nov 28 '15 at 12:26
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How does the C code that prints from 1 to 1000 without loops or conditional statements work?
...; operator, a function designator with
type "function returning type" is converted to an expression that has type "pointer to
function returning type".
exit is a function designator. Even without the unary & address-of operator, it is treated as a pointer to function. (The & just makes...
Image Segmentation using Mean Shift explained
...
A Mean-Shift segmentation works something like this:
The image data is converted into feature space
In your case, all you have are intensity values, so feature space will only be one-dimensional. (You might compute some texture features, for instance, and then your feature space would be two d...
GROUP BY with MAX(DATE) [duplicate]
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VERY slow! The currency converter table with fields date,from,to,rate. 203161 rows total. Joe Meyer method gives 362 rows in set (31,29 sec). Oliver Hanappi method gives 362 rows in set (0,04 sec)
– TheRoSS
Dec...
How to remove leading and trailing zeros in a string? Python
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What about a basic
your_string.strip("0")
to remove both trailing and leading zeros ? If you're only interested in removing trailing zeros, use .rstrip instead (and .lstrip for only the leading ones).
[More info in the doc.]
You could use some list comprehension to get the sequences you w...
Casting to string in JavaScript
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They behave the same but toString also provides a way to convert a number binary, octal, or hexadecimal strings:
Example:
var a = (50274).toString(16) // "c462"
var b = (76).toString(8) // "114"
var c = (7623).toString(36) // "5vr"
var d = (100).toString(2) // "110010...