Available courses

First Post


➤ Appreciating the provenance of the WordPress platform

➤ Choosing a suitable platform for your WordPress installation

➤ Downloading, installing, and performing basic confi guration of


➤ Diagnosing and resolving common installation problems

If displaying “Hello World” on an appropriate device defi nes minimum competence in a programming

language, generating your fi rst post is the equivalent in the online publishing world.

This chapter provides a brief history of WordPress and then explores several options for hosting

a WordPress installation. Common miscues and misperceptions along with their resolutions

round out the chapter and put you on the edge of publishing your wit and wisdom.

Once you’ve installed, confi gured, and completed the bare-bones administration, you’re ready

to take advantage of the code walk-throughs and detailed component descriptions in later

chapters. Of course, if you already have a functional WordPress website, you can skip this

chapter, and dive in headfi rst to explore the core code in Chapter 2, “Code Overview.”


WordPress is one of the most popular open source content management systems available,

with global and vibrant user, developer, and support communities. While it can be compared

to TypePad, Moveable Type, Google’s Blogger, and the Apache Roller project as a user-generated

content workhorse, WordPress distinguishes itself with a broad array of hosting options,

functional extensions (plugins), and aesthetic designs and elements (themes).

Every program is limited by the language which is used to write it. C is a

programmer’s language. Unlike BASIC or Pascal, C was not written as a

teaching aid, but as an implementation language. C is a computer language

and a programming tool which has grown popular because programmers like

it! It is a tricky language but a masterful one. Sceptics have said that it is

a language in which everything which can go wrong does go wrong. True, it

does not do much hand holding, but also it does not hold anything back. If

you have come to C in the hope of finding a powerful language for writing

everyday computer programs, then you will not be disappointed.

1. FUNCfiII COMPLEXE 1.1 Numere complexe 1.1.1 Introducere. Forma algebric„ Mul˛imea numerelor complexe a ap„rut din necesitatea extinderii mul˛imii numerelor reale  astfel ca orice ecua˛ie de gradul al doilea s„ aib„ solu˛ii Ón noua mul˛ime. Fie 2  produsul cartezian al perechilor ordonate  x, y de numere reale, adic„    2   x, y x , y  . Pe mul˛imea 2  se definesc dou„ opera˛ii algebrice interne, adunarea ºi Ónmul˛irea, astfel:       1 1 2 2 1 2 1 2 x , y  x , y  x  x , y  y , (1.1.1)       1 1 2 2 1 2 1 2 1 2 2 1 x , y  x , y  x x  y y , x y  x y . (1.1.2) Aºadar, prin mul˛imea  a numerelor complexe vom Ón˛elege tripletul   2  ,, . Mul˛imea  Ónzestrat„ cu cele dou„ opera˛ii are o structur„ de corp comutativ. Elementele corpului  se numesc numere complexe. Un element al corpului  se va nota prin z , z  , z   x, y , cu x, y  . Elementele neutre ale corpului  sunt 0  0,0 ºi 1  1,0 . (1.1.3) Elementul z  x, y (1.1.4) este opusul elementului z , iar 1 2 2 2 2 , x y z x y x y            (1.1.5) este inversul lui z ºi se noteaz„ 1 z . Num„rul complex 0,1 a fost notat de Euler cu i ºi se numeºte unitatea imaginar„. Avem