This brief paragraph was put in before a section tag to ensure that it was styled correctly. This equation has been thrown in as a child of content for styling purposes. 2 f t 2 f t 2 f t 2

General Example with Equation The complex exponential defines the notion of frequency: It is the only signal that contains only one frequency component. The sinusoid consists of two frequency components: one at the frequency + f 0 and the other at f 0 . This is Euler's relation relating things like e's and cosines 2 f t 2 f t 2 f t 2 Euler's relation 2 f t 2 f t 2 f t 2 Another Euler's relation 2 f t 2 f t 2 f t The complex exponential signal can thus be written in terms of its real and imaginary parts using Euler's relation. Thus, sinusoidal signals can be expressed as either the real or the imaginary part of a complex exponential signal (the choice depends on whether cosine or sine phase is needed) or as the sum of two complex exponentials. These two decompositions are mathematically equivalent to each other.

Section: ICSA The Rice Sailing Team is part of a sailing coalition called ICSA which stands for Inter-Collegiate Sailing Association. The ICSA is the governing body for collegete sailing programs in the US. Volunteers of ICSA develop the racing rules. They also organize the national regattas. To be a member of ICSA, a college must pay money to a sub-district.

SEISA Rice is a member of the SEISA district of ICSA. SEISA stands for South-Eastern Inter-Collegiate Sailing Association. SEISA is the organization that the South-East colleges compete in. The schools gather to compete for all normal regattas. One or two schools from SEISA will qualify for the National competitions hosted by ICSA.

RUST: Rice University Sailing Team RUST is Rice's competitive sailing team. Rice is a member of SEISA. This district is made up of several schools, including UT, A&M, A&M Galveston, UNO, Tulane, Kansas, and UWF. The Rice Sailing Club is open to all members of the student community, including graduate students. Beginner and expert sailors alike are encouraged to practice with the team. RUST is a small and easy-going club. There are no attendance requirements, and everyone who wants to sail can sail. Members pay yearly dues to help cover expenses, but every member not only gets to sail, but gets a sailing club T-shirt too! For the benefit of Mr. Kite, there will be a show tonight on trampoline. The Hendersons will all be there, late Pablo Fanques Fair - what a scene. Over men and horses, hoops and garters, lastly through a hogshead of real fire! In this way Mr. K. will challenge the world! The celebrated Mr. K. performs his feat on Saturday at Bishopsgate. The Hendersons will dance and sing as Mr. Kite flys through the ring - don't be late. Messrs. K and H. assure the public their production will be second to none. And course Henry The Horse dances the waltz! This equation has been thrown in as a child of section for styling purposes 2 f t 2 f t 2 f t 2

Section Three Point Two Section 3.2

Section Three Point Three Section 3.3

four levels down

five levels down

six levels down

seven levels down

eight levels down

nine levels down

how low can you go?

as low as you want

CNXML is limitless in it's powers You get the picture!

List Hello and welcome to my list of things to do. The following list is within a paragraph, whereas the subsequent ordered list is preceded by a paragraph. This is an item. The length of this item has been extended for quality assurance of its style upon wrapping, assuming it extends for more than the width of the screen, which is why it may appear that I am dragging this sentence out for a long time.. This is another item with a list nested inside of it. The next subitem contains a named equation. Euler's relation 2 f t 2 f t 2 f t 2 This is not a new paragraph. This is also not a new paragraph. This is a new paragraph. Example Enumerated List This is an enumerated list item not located within paragraph tags. This is another item with a list nested inside of it. This is a subitem. But the subitem is not enumerated. This is another subitem. Yet another item A list of notes, definitions, and rules Sulfuric and Hydrochloric Acid are very dangerous. Please handle with caution. Sulfuric and Hydrochloric Acid are very dangerous. Please handle with caution. note A short letter. Bob, Your son called. -Mary A different meaning for the term. A first example. A second example. t n 1 n A p T / 2 t n T 2 Pythagorean Theorem On a right triangle, the sum of the squares of the sides equals the square of the hypotenus. proof name Your favorite proof goes here. This example is a child of the proof. The next one is not. Take a right triangle whose sides are of length 3, 4, and 5. In this case the sum of the square of the two shorter sides is 9+16=25. The square of the hypotenus is 25. So the theorem holds. This paragraph contains an inline list, i.e. a list with type="inline: This item has no nameNameThis is item has a name. Next is an inline list with a nameList nameFirst item nameFirst item text2nd item text blah blah blah. This paragraph also contains a named-item list, i.e. a list with type="named-item": name of listThis item has no name, even though it's part of a named-item list fluff fluff fluff fluff fluff fluff fluff fluff fluff fluff fluff fluff fluff fluff fluff fluffnamenamenameThis item as a longish name fluff fluff fluff fluff fluff fluff fluff fluff fluff fluff fluff fluff fluff fluff fluff fluffnThis item has a short name fluff fluff fluff fluff fluff fluff fluff fluff fluff fluff fluff fluff fluff fluff

CNXN and Link If you want to learn more about things in general, you can look at other pages in CNX world. To learn more about CNXML, go to the CNXML 0.5 spec. Then you can write things like <cnxn> and <link> in CNXML. You will also be able to make CNXN's between things you wrote and things other people have written. For example, to learn more about Rice sailing, you can look right here at the sailing section in this module. Or you could link to something even less relevant, say digital communication receivers. To go to a topic which is a bit more relavant to writing <cnxn> tags, you could visit the module about using emacs. If you have more questions about Connexions basics, you could look at the FAQ . So if you want to learn more about the world in which you live, Connexions is the place to be. empty cnxn testing To another module: To a subfigure: To a figure: To a paragraph: To an equation: To a note with no type attribute: To a note with type attribute equal to null string: To a note with a type attribute other than "note": To a footnote: To a rule: To an emphasis: To a definition: To an exercise outside of an example: To a problem outside an example: To a solution outside an example: To a solution (one of many) outside an example: To an exercise inside an example: To a problem inside an example: To a solution inside an example: To a solution (one of many) inside an example: To a glossary: To a cnxn: To a table caption: To a figure caption: To an example with no numbering To an example after an example with no numbering

Example As an example of signal complexity, we can express the pulse p Δ t as a sum of delayed unit steps. p Δ t u t u t Δ Thus, the pulse is a more complex signal than the step. Be that as it may, the pulse is very useful to us. CNXML can be a pain This sentence, although it is very unimportant and irrelevant, contains emphasis within the <example> tag. For an example of <cite> within <example>, see Things That Are a Pain to Style in CNXML by Max Starkenburg. For an example of <emphasis> within <cite> within <example>, please see Things That Are a Pain in the Butt to Style in CNXML, also by Max Starkenburg. This sentence contains emphasized codeline within an example. This sentence contains a cnxn within an example. This sentence contains a link. This sentence contains a term. This sentence contains a codeline term. This paragraph has just been thrown in to ensure that it is styled correctly. It has nothing to say, but is long anwyay, just to make sure that it continues to the next line.


	  <html>               
	  <head>
	  <title>Codeblock within the example tag</title>
	  </head>

	  <body bgcolor="#ffffff" link="#990000">

Example List in Example This is an enumerated list item. This is another item with a list inside of it. This is a bulleted list item This is another bulleted list item

This figure is inside of the <example> tag. Transform Time Domain Frequency Domain Convolution Continuous-Time Fourier Series L 2 0 T l 2 Continuous-Time Circular Continuous-Time Fourier Transform L 2 L 2 Continuous-Time Linear Discrete-Time Fourier Transform l 2 L 2 0 2 Discrete-Time Linear Discrete Fourier Transform l 2 0 N 1 l 2 0 N 1 Discrete-Time Circular

note A short letter. Bob, Your son called. -Mary Pythagorean Theorem On a right triangle, the sum of the squares of the sides equals the square of the hypotenus. proof name Your favorite proof goes here. Take a right triangle whose sides are of length 3, 4, and 5. In this case the sum of the square of the two shorter sides is 9+16=25. The square of the hypotenus is 25. So the theorem holds. Sulfuric and Hydrochloric Acid are very dangerous. Please hande with caution. Sulfuric and Hydrochloric Acid are very dangerous. Please hande with caution.

23h8902 aj2390tj jaf3j9w0gea ja jdlfasdnfl

Exercise Express a square wave having period T and amplitude A as a superposition of delayed and amplitude-scaled pulses. This is an extra paragraph thrown in for styling purposes. This is a paragraph that begins a solution. The equation is nested in the paragraph. t n 1 n A p T / 2 t n T 2 This is an extra paragraph thrown in for styling purposes. Problem Text Here Solution Text Here Exercise/problem nested inside example nested inside example. Solution nested inside example nested inside example.

section for testing purposes only Problem Text Here Solution Text Here

Problem Text Here Solution 1 Text Here Solution 2 Text Here This equation has been thrown in as a child of problem for styling purposes 2 f t 2 f t 2 f t 2 The solution is to use Mozilla, and not IE, nor Netscape. The latter two browsers have serious CSS bugs. For an equation inside a solution, see the above exercise. Note the ability to have more than one solution per exercise. This exercise contains a problem but no solution Another exercise in an an example following the other ones Solution text

Codeline and Codeblock Try running this in MATLAB.


				for n=1:1000
	y(n) = sum(a.*y(n-1:-1:n-p)) + sum(b.*x(n:-1:n-q));
	end

The for command repeats its contents while incrementing a counter.

<!-- some codeline and codeblock are
	  emphasized more than others -->

<!-- 
	  codeline can be linked and cnxn'ed too -->


	codeblock
	can be 
	linked and
	cnxn'ed
	as well

Definition, Term, Meaning, and Example note A short letter. Bob, Your son called. -Mary A different meaning for the term. A first example. A second example. I can also define a new term in the middle of a sentence. A term is a new word that is being defined for the first time. The following definition will be the child of a <para> tag to ensure that it is styled well. #!/usr/local/bin/perl/ The first line of every Perl program This program will produce a 2-column listing of a file.


	    #!/usr/local/bin/perl/
	    while( $1 = >STDIN> ) {
	    chop( $1 );
	    if( $1 =~ s/^Desig:\s+// ) {
	    $desig = $1;
	    next;
	    }
	    if( $1 =~ s/^Area:\s+// ) {
	    $area = $1;
	    printf( "%-12s %\n", $desig, $area );
	    }
	    }

This sentence contains a term which is half regular half codeline. Feast your eyes on this: #!/usr/local/bin/perl/ is a term smack dab in the middle of a sentence! Amazing! This example, #!/usr/local/bin/perl/ , is a codeline term with emphasis on /local/. The next example is a

codeline term with a link

	    and cnxn

. equation This equation has been thrown in as a child of meaning for styling purposes 2 f t 2 f t 2 f t 2

Note Chemistry lab was always a lot of fun. We played with a lot of chemicals such as Sulfuric and Hydrochloric acid. Sulfuric and Hydrochloric Acid are very dangerous. Please handle with caution. Chemistry lab was always a lot of fun. We played with a lot of chemicals such as Sulfuri and Hydrochloric acid. This note does not have a string in its type attribute. Please handle with caution. This note does not have a type attribute. Please handle with caution. Chemistry lab was always a lot of fun. We played with a lot of chemicals such as Sulfuric and Hydrocholic acid. Sulfuric and Hydrochloric Acid are very dangerous. Please handle with caution. Adding another footnote here. This note was added to test styling. Chemistry lab was always a lot of fun. We played with a lot of chemicals such as Sulfuric and Hydrocholic acid. Sulfuric and Hydrochloric Acid are very dangerous. Please handle with caution. Also handle this note with caution, because it contains the attribute type="FOOTNOTE", not type="footnote", and will thus be styled differently.

Rule Pythagorean Theorem On a right triangle, the sum of the squares of the sides equals the square of the hypotenus. This proof was thrown into to have a child of equation for styling purposes 2 f t 2 f t 2 f t 2 Take a right triangle whose sides are of length 3, 4, and 5. In this case the sum of the square of the two shorter sides is 9+16=25. The square of the hypotenus is 25. So the theorem holds. If s t is real, c − k c k * This result follows from the integral that calculates the c k from the signal. Furthermore, this result means that Re c k Re c − k : The real part of the Fourier coefficients for real-valued signals is even. Similarly, Im c k Im c − k : The imaginary parts of the Fourier coefficients have odd symmetry. Consequently, if you are given the Fourier coefficients for positive indices and zero and are told the signal is real-valued, you can find the negative-indexed coefficients, hence the entire spectrum. This kind of symmetry, c − k c k * , is known as conjugate symmetry. We can phrase the property concisely by saying: Real-valued periodic signals have a conjugate-symmetric spectrum. The Fourier series obeys: Parseval's Theorem Power calculated in the time domain equals the power calculated in the frequency domain. 1 T t 0 T s 2 t k c k 2 This result is a (simpler) re-expression of how to calculate a signal's power than with the real-valued Fourier series expression for power .

Cite Useful information about the color blue can be found in The Big Book of the Color Blue. Emphatic information about emphasizing can be found in The Gigantic Book of Emphasis.

Figures Here is an example of a figure with a large table inside it. For exhaustive examples of figures, subfigures, and captions in many shapes, sizes, and combinations, see . Currently, figures cannot be placed in paragraph tags.

Ascii table Budget - Comparison by year Income 12,293 12,398 14,298 Expenditure 293 398 298 Surplus 12000 12000 14000

And here we can add more information about the table in a caption!

Subfigures

The Subsequent Figure Does Not Have a Name Lena Lena as a signal Lena again On the left and right is the classic "Lena" image, which is used ubiquitously as a test image. It contains straight and curved lines, complicated texture, and a face. In the middle is a perspective display of the Lena image as a signal: a function of two spatial variables. The colors merely help show what signal values are about the same size. In this image, signal values range between 0 and 255; why is that?

Lena Lena as a signal This example is the same as the last, except that orient='vertical'. So, the subfigures should be on top of each other.

Tables Here's is a very simple example of a table, similiar to ones seen previously in this module. Budget - Comparison by year Item Year 1998 1999 2000 Income 12,293 12,398 14,298 Expenditure 293 398 298 Surplus 12000 12000 14000

Quotes and Foreign Terms Two new elements added in CNXML 0.5 are quote and foreign. A quote of type "block" might look like this: I define the real as that which holds its characters on such a tenure that it makes not the slightest difference what any man or men may have thought them to be, or ever will have thought them to be, here using thought to include, imagining, opining, and willing (as long as forcible means are not used); but the real thing's characters will remain absolutely untouched. --C.S. Peirce, Collected Papers 6.495. Anyone involved in interface design and usability should consider Einstein's axiom (shown here in a quote of type 'inline'): Everything should be made as simple as possible, but not one bit simpler. In order to appear urbane and literate, we should liberally sprinkle our discourse with foreign terms and phrases, such as Fahrvergnügen and sang-froid. It is possible to include a block quote inside a note, with foreign elements interspersed: "Freundschaftsbezeigungen" seems to be "Friendship demonstrations," which is only a foolish and clumsy way of saying "demonstrations of friendship." "Unabhängigkeitserklärungen" seems to be "Independencedeclarations," which is no improvement upon "Declarations of Independence," so far as I can see. "Generalstaatsverordnetenversammlungen" seems to be "General-statesrepresentativesmeetings," as nearly as I can get at it -- a mere rhythmical, gushy euphuism for "meetings of the legislature," I judge. --Mark Twain, "The Awful German Language"

Conclusion For more information on all of the CNXML used in this module, please refer to the CNXML Spec.

72 dpi 150 dpi 300 dpi An example of how media that appear to be the same size on screen can be a different size in print due to resolution.