3. Other text features

   Feature	Function	Example
   Abbreviation	to save space	Modern PC graphics are not just about creating pretty pictures.
   Italic	to show titles and words from other languages	This process is called full pivoting; for forward elimination we only do part of this work hence the process is called partial pivoting .
   Footnote	to indicate references at the bottom of the page	Gauss-Jordan reduction2 can be implemented with full pivoting to replace a matrix by its inverse in one sweep through it.
   Endnote	to show references at the end of the article or chapter	These effects make interpolating polynomials inappropriate for many curve-fitting applications [1].
   Quotation marks	used to draw attention to a phrase, perhaps because it is being used in an unusual or new way	Gaussian elimination with partial pivoting using the largest available pivot is “guaranteed” to produce results with very small computational errors.

4. Paragraph

! A paragraph is a group of related sentences that discuss one main idea. A paragraph can be as short as one sentence or as long as ten sentences. The number of sentences is unimportant; however, the paragraph should be long enough to develop the main idea clearly.

A paragraph may stand by itself and may also be one part of a longer piece of writing such as an essay or a book. We mark a paragraph by indenting the first word about a half inch (five spaces on a typewriter or computer) from the left margin.

2. The following model contains all the elements of a good paragraph. Read it carefully two or three times. Then answer the Writing Technique questions that follow, which will help you analyze its structure.

We think of the Mona Lisa as a brilliant example of Renaissance art. First of all, the Mona Lisa is a mysterious image. Secondly, we think of it as a thoughtful study in composition, light, and shadow. Therefore, we don't think of it as a mathematical formula. But in the computer world, all art, graphics, shapes, colors, and lines involve some type of mathematical algorithm. That statement isn't meant to belittle the works of Da Vinci and other great artists.

Mathematical algorithms cannot create art; that still takes a true artist, whether the artist's tools are brush, oils, and canvas or a computerized stylus. But math embedded³ in specific file formats can describe any piece of existing art. For example, a graphics-file image of the Mona Lisa that you can display on your PC is the result of mathematical calculations on the bytes of data saved in that file. In conclusion, all the capabilities of a darkroom and an artist's studio are available on a personal computer.

Writing Technique Questions

1. What is the topic of the paragraph?

2. What two main points does the writer make about the topic?

3. In which two sentences does the writer say that there are two main points?

4. What examples does the writer use to support his idea?

! All paragraphs have a topic sentence and supporting sentences, and some paragraphs also have a concluding sentence.

The topic sentence states the main idea of the paragraph, limits the topic to one specific area that can be discussed completely in the space of a single paragraph. The part of the topic sentence that announces the specific area to be discussed is called the controlling idea. The topic sentence is often, but not always, the first. Notice how the topic sentence of the model states both the topic and the controlling idea:

We think of the Mona Lisa (topic) as a brilliant example of Renaissance art.(controlling idea)

Supporting sentences explain, prove or develop the topic sentence. That is, they explain or prove the topic sentence by giving more information about it. Following are some of the supporting sentences that explain the topic sentence about the Mona Lisa.

First of all, the Mona Lisa is a mysterious image.

Secondly, we think of it as a thoughtful study in composition, light, and shadow.

Therefore, we don't think of it as a mathematical formula.

For example, a graphics-file image of the Mona Lisa that you can display on your PC is the result of mathematical calculations on the bytes of data saved in that file.

There are several kinds of specific supporting details: Quotations (e.g. direct quotes, paraphrases, summaries); Examples (e.g. illustrations of your points); Statistics (e.g. facts, figures, diagrams).

Examples make writing lively and interesting, and a reader is more likely to remember your point if you support it with a memorable example. Words and phrases that introduce examples include for example, for instance, and such as.

For more information on using statistics in academic writing, the handouts and resources may be helpful on the following site: http://writingcenter.waldenu.edu/902.htm

When you use a direct quote, you copy and reference the exact word/s of the author into your writing. A direct quote may be: one word; a phrase or part of a sentence; a sentence; a group of sentences.

When you decide to use the EXACT words of an author in your writing, you will need to consider whether you want to use only a few words (short quote from one word to about 40 words) or a longer chunk of text (long quote -- more than 40 words OR three typed lines).

There are different rules for using quotes according to the length of the quote.

Short direct quotes

1. use double quotation marks "..."

2. include the quote in the text by using reporting words

Long quotes

1. leave no space above and below the long quote

2. make the text size the same as the essay text size

3. indent approximately one centimetre to the right

4. do NOT use quotation marks

The concluding sentence signals the end of the paragraph and leaves the reader with important points to remember. You can do this by summarizing the main points of the paragraph or by repeating the topic sentence in different words.

In conclusion, all the capabilities of a darkroom and an artist's studio are available on a personal computer.

Concluding sentences are customary for stand-alone paragraphs. However, a concluding sentence is not needed for every paragraph in a multiparagraph essay. You can use the following concluding signals:

End-of-paragraph Signals with a Comma		End-of-paragraph Signals without a Comma
In conclusion, In brief, In short, In summary,	Finally, Lastly, To sum up, Indeed	We can see that … The example shows that … No doubt that …

NB! DO NOT use the phrase At last as an end-of-paragraph signal. At last means "at the end of a long period of time."

! Well-organised paragraphs not only help readers understand the argument; they also help writers to structure their ideas effectively. Introductory paragraphs often contain definitions, and descriptive paragraphs include a lot of detail. Other sentences give examples and offer reasons and restatements.

The structure of the paragraph is:

1. Topic sentence

2. Reason

3. Example

4. Details

5. Further details

6. Reason