Tutorial by Examples: num

The splat operator removes individual elements of an array and makes them into a list. This is most commonly used to create a method that accepts a variable number of arguments: # First parameter is the subject and the following parameters are their spouses def print_spouses(person, *spouses) s...

Symfony 2.8 # AppBundle\Twig\AppExtension.php <?php namespace AppBundle\Twig; class AppExtension extends \Twig_Extension { /** * This is where one defines the filters one would to use in their twig * templates * * @return Array */ public function ...

The example below uses the input statement to read a value from a source (in this case the string 123) into a both a character destination and a numeric destination. data test; source = '123'; numeric_destination = input(source, best.); character_destination = input(source, $3.); run; ...

A common need for random numbers it to generate a number that is X% of some max value. this can be done by treating the result of NextDouble() as a percentage: var rnd = new Random(); var maxValue = 5000; var percentage = rnd.NextDouble(); var result = maxValue * percentage; //suppose NextDoub...

set number1 to 8

The most common use of formatting is to control display of numeric information contained in the cells in a consistent format, such as currency, a certain number of digits to the right of the decimal point, etc. There are several categories for numbers, such as Currency, Accounting, Percentage, and ...

Numeric values can compared with = and the other numeric comparison operators (/=, <, <=, >, >=) that ignore the difference in the physical representation of the different types of numbers, and perform the comparison of the corresponding mathematical values. For instance: (= 42 42) T ;...

The core data structure in numpy is the ndarray (short for n-dimensional array). ndarrays are homogeneous (i.e. they contain items of the same data-type) contain items of fixed sizes (given by a shape, a tuple of n positive integers that specify the sizes of each dimension) One-dimensional ar...

The following example declares a new instance of the Random class and then uses the method .Next to generate the next number in the sequence of pseudo-random numbers. Dim rnd As New Random Dim x As Integer x = rnd.Next The last line above will generate the next pseudo-random number and assign ...

import java.util.*; class Book { int id; String name,author,publisher; int quantity; public Book(int id, String name, String author, String publisher, int quantity) { this.id = id; this.name = name; this.author = author; this.publisher = p...

import java.util.*; enum days { SUNDAY, MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY } public class EnumSetExample { public static void main(String[] args) { Set<days> set = EnumSet.of(days.TUESDAY, days.WEDNESDAY); // Traversing elements Itera...

The function Emitter.listenerCount(eventName) will return the number of listeners that are currently listening for the event provided as argument const EventEmitter = require("events"); class MyEmitter extends EventEmitter{} var emitter = new MyEmitter(); emitter .on("data&quot...

$data = $result->mysqli_fetch_array(MYSQLI_NUM);

Bottom up approach for printing the nth Fibonacci number using Dynamic Programming. Recursive Tree fib(5) / \ fib(4) fib(3) / \ / \ fib(3) fib(2...

Suppose we have this file: test>>cat file 10.Gryffindor 4.Hogwarts 2.Harry 3.Dumbledore 1.The sorting hat To sort this file numerically, use sort with -n option: test>>sort -n file This should sort the file as below: 1.The sorting hat 2.Harry 3.Dumbledore 4.Hogwa...

Fibonacci Numbers are a prime subject for dynamic programming as the traditional recursive approach makes a lot of repeated calculations. In these examples I will be using the base case of f(0) = f(1) = 1. Here is an example recursive tree for fibonacci(4), note the repeated computations: Non-Dy...

~~ Could be used on non-numeric values. A numeric expression will be first converted to a number and then performed bitwise NOT operation on it. If expression cannot be converted to numeric value, it will convert to 0. true and false bool values are exceptions, where true is presented as numeric v...

def versionPropsFile = file('version.properties') def versionBuild /*Setting default value for versionBuild which is the last incremented value stored in the file */ if (versionPropsFile.canRead()) { def Properties versionProps = new Properties() versionProps.load(new FileInputStream(ve...

\documentclass[12pt]{article} \usepackage{lastpage} \usepackage{fancyhdr} \usepackage{graphicx} \usepackage{lipsum} % for dummy text \pagestyle{myheadings} \pagestyle{fancy} \fancyhf{} \setlength{\headheight}{30pt} \renewcommand{\headrulewidth}{1pt} \renewcommand{\footrulewidth}{2p...

public enum BookCode { _10A("Simon Haykin", "Communication System"), _42B("Stefan Hakins", "A Brief History of Time"), E1("Sedra Smith", "Electronics Circuits"); private String author; private String title; ...