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LaTeX Optional Arguments
How do you create a command with optional arguments in LaTeX?
Something like:
6 Answers
...
Compare two data.frames to find the rows in data.frame 1 that are not present in data.frame 2
...re allowed (e.g. changing order of elements of each vector, changing order and names of variables, shortening variables, changing case of strings). From this, you should be able to figure out what was missing from one or the other. For example (this is not very elegant):
difference <-
data.fr...
Understanding Python super() with __init__() methods [duplicate]
I'm trying to understand the use of super() . From the looks of it, both child classes can be created, just fine.
7 Answe...
How to create multidimensional array
...2[0] == 'input3';
mixed.row2[1] == 'input4';
http://jsfiddle.net/z4Un3/
And if you're wanting to store DOM elements:
var inputs = [
[
document.createElement('input'),
document.createElement('input')
],
[
document.createElement('input'),
document.create...
In Python, how do I read the exif data for an image?
...r python3 use Pillow. It is a fork of PIL, which is still being developed, and has a python3 compatible version
– Mzzl
Jan 15 '14 at 9:54
1
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How can I delete all Git branches which have been merged?
...
UPDATE:
You can add other branches to exclude like master and dev if your workflow has those as a possible ancestor. Usually I branch off of a "sprint-start" tag and master, dev and qa are not ancestors.
First, list all branches that were merged in remote.
git branch --merged
You m...
Parse error: Syntax error, unexpected end of file in my PHP code
...
You should avoid this (at the end of your code):
{?>
and this:
<?php}
You shouldn't put brackets directly close to the open/close php tag, but separate it with a space:
{ ?>
<?php {
also avoid <? and use <?php
...
How to show all privileges from a user in oracle?
...RIVS;
SELECT * FROM USER_TAB_PRIVS;
SELECT * FROM USER_ROLE_PRIVS;
DBAs and other power users can find the privileges granted to other users with the DBA_ versions of these same views. They are covered in the documentation .
Those views only show the privileges granted directly to the user. Fi...
Make a link in the Android browser start up my app?
... scheme. Something along the lines of:
<intent-filter>
<data android:scheme="anton" />
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABL...
How to set HTTP headers (for cache-control)?
...ive CACHE-CONTROL:NO-CACHE indicates cached information should not be used
and instead requests should be forwarded to the origin server. This directive has the same semantics as the PRAGMA:NO-CACHE.
Clients SHOULD include both PRAGMA: NO-CACHE and CACHE-CONTROL: NO-CACHE when a no-cache request is...