Tutorial by Examples: sin

Python xlrd library is to extract data from Microsoft Excel (tm) spreadsheet files. Installation:- pip install xlrd Or you can use setup.py file from pypi https://pypi.python.org/pypi/xlrd Reading an excel sheet:- Import xlrd module and open excel file using open_workbook() method. import x...

Sometimes a build combines multiple source directories, each of which is their own 'project'. For instance, you might have a build structure like this: projectName/ build.sbt project/ src/ main/ ... test/ ... core/ src/ main/ ... test/ ... webapp/ src/ main/ ... test/ ... In t...

In projects that feature several singleton classes (as is often the case), it can be clean and convenient to abstract the singleton behaviour to a base class: using UnityEngine; using System.Collections.Generic; using System; public abstract class MonoBehaviourSingleton<T> : MonoBehaviou...

If you've got an interface with a generic type parameter, Spring can use that to only autowire implementations that implement a type parameter you specify. Interface: public interface GenericValidator<T> { public T validate(T object); } Foo Validator Class: @Component public class...

Showing Basic Example of the View Page in Yii2 For New Learners These are basic classes you must to add to create form using yii2 ActiveForm <?php Use yii\helpers\Html; Use yii\widgets\ActiveForm; The Below line will start the form tag for our form below showing example shows that how to...

Single-line comments begin with a pound sign # and go to the end of the line: # This is a comment my $foo = "bar"; # This is also a comment

The Combined Call method allows you to use multiple AlchemyLanguage functions in one request. This example uses a Combined Call to get entities and keywords from the IBM website and returns sentiment information for each result. This example requires AlchemyLanguage service credentials and Node.j...

AlchemyLanguage's Targeted Sentiment feature can search your content for target phrases and return sentiment information for each result. This example requires AlchemyLanguage service credentials and Node.js Use a command-line interface to install the Watson Developer Cloud Node.js SDK: $...

The hash codes produced by GetHashCode() method for built-in and common C# types from the System namespace are shown below. Boolean 1 if value is true, 0 otherwise. Byte, UInt16, Int32, UInt32, Single Value (if necessary casted to Int32). SByte ((int)m_value ^ (int)m_value << 8); Char...

Generally, it's not a good idea to use a regular expression to parse a complex structure. But it can be done. For instance, you might want to load data into hive table and fields are separated by comma but complex types like array are separated by a "|". Files contain records with all fiel...

Fluent methods in Kotlin can be the same as Java: fun doSomething() { someOtherAction() return this } But you can also make them more functional by creating an extension function such as: fun <T: Any> T.fluently(func: ()->Unit): T { func() return this } Which the...

A question that occasionally on StackOverflow is whether it is appropriate to use assert to validate arguments supplied to a method, or even inputs provided by the user. The simple answer is that it is not appropriate. Better alternatives include: Throwing an IllegalArgumentException using cust...

The WMI type provider allows you to query WMI services with strong typing. To output the results of a WMI query as JSON, open FSharp.Management open Newtonsoft.Json // `Local` is based off of the WMI available at localhost. type Local = WmiProvider<"localhost"> let data = ...

import sympy as sy # Symbols have to be defined before one can use them x = sy.S('x') # Definition of the equation to be solved eq=sy.Eq(x**2 + 2, 6) #Print the solution of the equation print sy.solve(eq) The result printed will be: [-2, 2]

For example, we have two environments: CI - Staging and want to add some customizations for each environment. Here I will try to customize server URL, app name. First, we create two targets for 2 environments by duplicating the main target: For each target, we will define a custom macro. Here I ...

C++ #include "opencv2/objdetect/objdetect.hpp" #include "opencv2/highgui/highgui.hpp" #include "opencv2/imgproc/imgproc.hpp" #include <iostream> #include <stdio.h> using namespace std; using namespace cv; // Function Headers void detectAndDisp...

The single line comment begins with "//" or "#". When encountered, all text to the right will be ignored by the PHP interpreter. // This is a comment # This is also a comment echo "Hello World!"; // This is also a comment, beginning where we see "//" ...

local collections are not allowed in select statements. Hence the first step is to create a schema level collection. If the collection is not schema level and being used in SELECT statements then it would cause "PLS-00642: local collection types not allowed in SQL statements" CREATE OR R...

# ... # same as above @app.route('/welcome/<name>') def welcome(name): return render_template('main.html', name=name) @app.route('/login', methods=['GET', 'POST']) def login(): if request.method == 'POST': # ... # check for valid login, assign username ...

Multiton can be used as a container for singletons. This is Multiton implementation is a combination of Singleton and Pool patterns. This is an example of how common Multiton abstract Pool class can be created: abstract class MultitonPoolAbstract { /** * @var array */ protec...