Matrix chain multiplication is an optimization problem that can be solved using dynamic programming. Given a sequence of matrices, the goal is to find the most efficient way to multiply these matrices. The problem is not actually to perform the multiplications, but merely to decide the sequence of t...
In the view file
In the base html (index.html) where we usually include the angular scripts or the html that is shared across the app, leave an empty div element, the flash messages will be appearing inside this div element
<div class="flashmessage" ng-if="isVisible">
...
In order to create a scheduler,the entry needs to be created in
liferay-portlet.xml
provding scheduler class and trigger value for timing of scheduler triggering
<portlet-name>GetSetGo</portlet-name>
<icon>/icon.png</icon>
<scheduler-entry>
...
Dependencies:
GNU Make Version > 3.80
an ISO/ ANSI C-Compiler (e.g. gcc)
an extractor like tar or gzip
zlib-devel
readline-devel oder libedit-devel
Sources:
Link to the latest source (9.6.3)
Now you can extract the source files:
tar -xzvf postgresql-9.6.3.tar.gz
There are a large ...
Part I : Setup the Mac machine to use shenzhen
Go to terminal
Install Shenzhen
sudo gem install shenzhen
sudo gem install nomad-cli
Download XCode command line utility
xcode-select --install
Popup shows up with the below text
The xcode-select command requires the command line d...
Computed properties will automatically be recomputed whenever any data on which the computation depends changes. However, if you need to manually change a computed property, Vue allows you to create a setter method to do this:
Template (from the basic example above):
<div id="example"...
Create a vector source
var vectorSource = new ol.source.Vector({});
Initiate Map Object and add vector Layer to the map and Source as the vectorSource
var map = new ol.Map({
layers: [
new ol.layer.Tile({
source: new ol.source.OSM()
}),
new ol.layer.Vector({
...
Quite often there is a need to glimpse the chosen color palette. One elegant solution is the following self defined function:
color_glimpse <- function(colors_string){
n <- length(colors_string)
hist(1:n,breaks=0:n,col=colors_string)
}
An example of use
color_glimpse(...
Function colors() lists all the color names that are recognized by R. There is a nice PDF where one can actually see those colors.
colorRampPalette creates a function that interpolate a set of given colors to create new color palettes. This output function takes n (number) as input and produces a...
Before we get our hands dirty with code, I feel it is necessary to understand how data is stored in firebase. Unlike relational databases, firebase stores data in JSON format. Think of each row in a relational database as a JSON object (which is basically unordered key-value pair). So the column nam...
Take a use case, like a chat app or a collaborative grocery list app (that basically requires a list of objects to be synced across users). If you use firebase database and add a value event listener to the chat parent node or grocery list parent node, you will end with entire chat structure from th...
In [1]: df = pd.DataFrame({'A': [1, 2, 3], 'B': [1.0, 2.0, 3.0], 'C': ['a', 'b', 'c'],
'D': [True, False, True]})
In [2]: df
Out[2]:
A B C D
0 1 1.0 a True
1 2 2.0 b False
2 3 3.0 c True
Getting a python list from a series:
In [3]: df['...
When we put the control of Label, the Label does not provide any event.
<Label x:Name="lblSignUp Text="Dont't have account?"/>
as shown the Label only display purpose only.
When the user want to replace Button with Label, then we give the event for Label.
As shown below:
XA...
The task is to find the length of the longest subsequence in a given array of integers such that all elements of the subsequence are sorted in ascending order. For example, the length of the longest increasing subsequence(LIS) for {15, 27, 14, 38, 26, 55, 46, 65, 85} is 6 and the longest increasing ...
Given a string what is the longest palindromic subsequence(LPS) of it? Let's take a string agbdba. The LPS of this string is abdba of length 5. Remember, since we're looking for subsequence, the characters need not to be continuous in the original string. The longest palindromic substring of the seq...
This Documentation is a small summary of the offical one
Prerequisites
Your PC must be running a 64-bit version of Windows 10 Anniversary Update build 14393 or later
To find your PC's CPU architecture and Windows version/build number, open Settings>System>About. Look for the OS Build ...
This chapter describes how to set up a Docker Container with Jenkins inside, which is capable of sending Docker commands to the Docker installation (the Docker Daemon) of the Host. Effectively using Docker in Docker. To achieve this, we have to build a custom Docker Image which is based on an arbitr...
Given coins of different denominations and a total, in how many ways can we combine these coins to get the total? Let's say we have coins = {1, 2, 3} and a total = 5, we can get the total in 5 ways:
1 1 1 1 1
1 1 1 2
1 1 3
1 2 2
2 3
The problem is closely related to knapsack problem. The o...
Given coins of different denominations and a total, how many coins do we need to combine to get the total if we use minimum number of coins? Let's say we have coins = {1, 5, 6, 8} and a total = 11, we can get the total using 2 coins which is {5, 6}. This is indeed the minimum number of coins require...
