exponentiation

original link: http://www.cnblogs.com/siqi/archive/2012/09/09/2667562.html 1. Single-case mode The singleton pattern, as its name implies, is only one instance. as an object's creation mode, Singleton mode ensures that a class has

Floating point number in the conversion process will have errors, so the floating-point number can not directly compare its size, generally in comparison with two floating-point number is compared between their difference, if the difference between

PHP supports 8 types of raw data. Four scalar types: Boolean (Boolean), Integer (integer), float (floating-point, also called Double), String (string), two composite types: Array (array), object, Finally, there are two special types: resource

1. Single-case mode The singleton pattern, as its name implies, is only one instance. As an object's creation mode, Singleton mode ensures that a class has only one instance, and instantiates itself and provides this instance to the system as a

Http://asc.2dark.org/node/45First, the most content of this article is I read Peng "Fortran 95 program Design" notes. Read only to the Nineth chapter, mainly 3~9 chapter, are the most basic usage (the original book a total of 16 chapters). Here the

Poj 2406 Power Strings Cycle Problem, poj2406Power Strings Time Limit:3000 MS   Memory Limit:65536 K Total Submissions:48139   Accepted:20040 DescriptionGiven two strings a and B we define a * B to be their

The first chapter of Rapid transformation: basic knowledge todivide and to( Python3.0 Prior to 2.7 version)>>> 1/2==>0evenly divisible, common division:Solution 1:1.0/2.0 ==>0.5Solution 2:from _future_ Import Division ==>0.5mean divisible>>>1//2==>

Java provides byte, short, int, and long to represent integers, float and double to represent floating point numbers, each type has a certain range of representation, after this range is exceeded, it cannot be processed. To process very large

Python built-in functions, which can be build-in Functions via Python's help document, can be viewed via commands under terminal interaction>>> dir ("__builtins__") [' __add__ ', ' __class__ ', ' __contains__ ', ' __delattr__ ', ' __dir__ ', ' __doc_

1. Single-case modeThe singleton pattern, as its name implies, is only one instance. As an object's creation mode, Singleton mode ensures that a class has only one instance, and instantiates itself and provides this instance to the system as a whole.

Factory mode (Factory) allows you to instantiate an object while the code is executing. It is called the Factory mode because it is responsible for the "production" object. The parameter of the factory method is the class name of the object that you

#!/bin/bashecho "Please input number:" Read na= ' expr $n/100 ' #a1 = ' expr $n-$a * b= ' echo ' ($n-$a *100)/10 "| BC ' c= ' echo ' ($n-$a *100-$b *10) "| BC '  d= ' echo ' $c *100+ $b *10+ $a "| BC ' echo $d turn:

The shell itself is a program written in C, which is a bridge for users to use Linux. The shell is both a command language and a programming language. As a command language, it interprets and executes user-entered commands interactively, and as a

Introduction to RSA AlgorithmsRSA is one of the most popular asymmetric encryption algorithms. Also known as public-key cryptography. It was proposed by Ronald Leevist (Ron rivest), Adi Samor (Adi Shamir) and Lennard Adman (Leonard Adleman) in 1977.

Python's syntax is very concise, so programs written in Python are readable and easy to understand. This chapter describes the basic syntax and concepts of Python.python file Types1, source code. Python's source code extension ends with a py, can be

The topic of this article is the numbers in Python. Details each of the numeric types, the various operators they apply to, and the built-in functions for working with numbers. At the end of the article, a few modules in the standard library for

1. Defects of large number modulus exponentiation: the introduction of fast power modulus algorithm is proposed from the limitation of the naïve algorithm of large number of decimal modulus, in the naïve method we calculate a number such as 5^1003%31

I. Constants and VariablesData types in 1.python Category:? Number: Numeric "integer, float, plural" ? String: Type ? Boolean: boolean "True,false" ? None: null value ? List: Lists ? Tuple: Tuples ? Dict: Dictionary ?

Natural language programming for Chinese: L scripting languageL Why design a new programming language? In the process of programming I always think, computer programming this thing takes so long time of study process, can make this job easier? There

awk is a command under Linux, his output of the other commands, the processing of the file is very powerful, in fact, he is more like a programming language, he can customize variables, conditional statements, there are loops, there are arrays,