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New Roman"'>CS1010E 2011/2012 Semester 2 - Introductory Lab</span><span style='mso-fareast-font-family: "Times New Roman"'><o:p></o:p></span></h1> <h3><span style='font-size:12.0pt;font-family:"Arial","sans-serif";mso-fareast-font-family: "Times New Roman"'>Week 3, Wednesday, 25th January 2012</span><span style='font-size:12.0pt;mso-fareast-font-family:"Times New Roman"'><o:p></o:p></span></h3> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p>&nbsp;</o:p></span></p> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>This introductory lab is for you to get familiar with the environments used in CS1010E labs. These include Unix/<span class=SpellE>cygwin</span>/<span class=SpellE>sunfire</span>, vim and <span class=SpellE>CodeCrunch</span>.<o:p></o:p></span></p> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p>&nbsp;</o:p></span></p> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p>&nbsp;</o:p></span></p> <h2><span style='font-family:"Arial","sans-serif"'>1. Unix/<span class=SpellE>cygwin</span>/<span class=SpellE>sunfire</span><o:p></o:p></span></h2> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>You will need to write your C programs in a <b style='mso-bidi-font-weight:normal'>Unix</b>-like environment. <span class=GramE>Unix</span> is simply an operating system, but unlike Windows where most tasks may be done using a graphics interface, Unix is mainly text-based. You have to type out your commands to perform any action.<o:p></o:p></span></p> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p>&nbsp;</o:p></span></p> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Now most of you do not have <span class=GramE>Unix</span> on your computers. Hence we will use <span class=SpellE><b style='mso-bidi-font-weight:normal'>cygwin</b></span>  a Unix-like environment for Windows. A guide on Unix/<span class=SpellE>cygwin</span> and simple commands can be found under  Getting Started tab.<o:p></o:p></span></p> <p class=MsoNormal><u><span style='font-family:"Arial","sans-serif"'>Note</span></u><span style='font-family:"Arial","sans-serif"'>: You are advised to extract <span class=SpellE>cygwin</span> on a non-administrative drive, preferably a USB drive. In some cases, you may not be able to run <span class=SpellE>cygwin</span> if you extract it to an administrative drive such as C<span class=GramE>:.</span><o:p></o:p></span></p> <p class=MsoNormal><span class=SpellE><span style='font-family:"Arial","sans-serif"'>Cygwin</span></span><span style='font-family:"Arial","sans-serif"'> should also be extracted directly to the root folder of the drive, rather than into another parent folder.<o:p></o:p></span></p> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p>&nbsp;</o:p></span></p> <p class=MsoNormal><span class=SpellE><span style='font-family:"Arial","sans-serif"'>Cygwin</span></span><span style='font-family:"Arial","sans-serif"'> is the environment for you to practice only. You are not allowed to use it during sit-in labs. Instead, you will be given a set of username and password to log in to <span class=SpellE><b style='mso-bidi-font-weight:normal'>sunfire</b></span>, another <span class=GramE>Unix</span> machine residing in the School of Computing. The environment and all commands in <span class=SpellE>sunfire</span> are the same as those in <span class=SpellE>cygwin</span>.<o:p></o:p></span></p> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p>&nbsp;</o:p></span></p> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p>&nbsp;</o:p></span></p> <h2><span style='font-size:22.0pt;font-family:"Arial","sans-serif"'>2. Vim<o:p></o:p></span></h2> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>After learning basic <span class=GramE>Unix</span> commands for files and folders in sections 1 and 2 of the  Getting Started guide, in section 3 you will come to <b style='mso-bidi-font-weight:normal'>vim</b>  a popular file editor in Unix. It is equivalent to Notepad in Windows.<o:p></o:p></span></p> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Besides the simple vim keys explained in that section, you may want to explore a more detailed guide on vim usage under  Using vim tab.<o:p></o:p></span></p> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p>&nbsp;</o:p></span></p> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Do not worry if you may have problem following sections 3.4 and 3.5. You will have take-home lab 1 to practice further!<o:p></o:p></span></p> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p>&nbsp;</o:p></span></p> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p>&nbsp;</o:p></span></p> <h2><span style='font-family:"Arial","sans-serif"'>3. <span class=SpellE>CodeCrunch</span><o:p></o:p></span></h2> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Besides <span class=SpellE>cygwin</span>, the environment in which you create/compile/run your programs, and vim, the editor, in this module you will need to use <span class=SpellE><b style='mso-bidi-font-weight:normal'>CodeCrunch</b></span>, a system to test whether your program output is correct. A guide on <span class=SpellE>CodeCrunch</span> can be found under  <span class=SpellE>CodeCrunch</span> (Introductory/Take-home lab) tab,  How to use <span class=SpellE>CodeCrunch</span> .<o:p></o:p></span></p> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p>&nbsp;</o:p></span></p> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p>&nbsp;</o:p></span></p> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Now you can use <span class=SpellE>cygwin</span> to edit, compile and run the following program:<br style='mso-special-character:line-break'> <![if !supportLineBreakNewLine]><br style='mso-special-character:line-break'> <![endif]><o:p></o:p></span></p> <table class=MsoNormalTable border=1 cellpadding=0 width="32%" style='width:32.32%;mso-cellspacing:1.5pt;mso-yfti-tbllook:1184;mso-padding-alt: 0in 0in 0in 0in'> <tr style='mso-yfti-irow:0;mso-yfti-firstrow:yes;mso-yfti-lastrow:yes; height:35.85pt'> <td width="99%" style='width:99.0%;padding:.75pt .75pt .75pt .75pt; height:35.85pt'> <p class=MsoNormal style='margin-bottom:10.0pt;line-height:115%'><span style='font-size:11.0pt;line-height:115%;font-family:"Calibri","sans-serif"; mso-no-proof:yes'><!--[if gte vml 1]><v:shapetype id="_x0000_t75" coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f"> <v:stroke joinstyle="miter"/> <v:formulas> <v:f eqn="if lineDrawn pixelLineWidth 0"/> <v:f eqn="sum @0 1 0"/> <v:f eqn="sum 0 0 @1"/> <v:f eqn="prod @2 1 2"/> <v:f eqn="prod @3 21600 pixelWidth"/> <v:f eqn="prod @3 21600 pixelHeight"/> <v:f eqn="sum @0 0 1"/> <v:f eqn="prod @6 1 2"/> <v:f eqn="prod @7 21600 pixelWidth"/> <v:f eqn="sum @8 21600 0"/> <v:f eqn="prod @7 21600 pixelHeight"/> <v:f eqn="sum @10 21600 0"/> </v:formulas> <v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect"/> <o:lock v:ext="edit" aspectratio="t"/> </v:shapetype><v:shape id="Picture_x0020_0" o:spid="_x0000_i1025" type="#_x0000_t75" alt="radius.jpg" style='width:274.5pt;height:237pt;visibility:visible; mso-wrap-style:square'> <v:imagedata src="index_files/image001.jpg" o:title="radius"/> </v:shape><![endif]--><![if !vml]><img width=366 height=316 src="index_files/image001.jpg" alt=radius.jpg v:shapes="Picture_x0020_0"><![endif]></span><span style='font-size:11.0pt;line-height:115%;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p> </td> </tr> </table> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p>&nbsp;</o:p></span></p> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Do you understand what it does?<o:p></o:p></span></p> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>If this program runs fine on your <span class=SpellE>cygwin</span>, you should see the output </span><b style='mso-bidi-font-weight:normal'><span style='font-family:"Courier New"'>Radius = 1.23456789</span></b><span style='font-family:"Arial","sans-serif"'>.<o:p></o:p></span></p> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Submit your program to <span class=SpellE>CodeCrunch</span>. If it gives you an A then congratulations, your first program is fully correct!<o:p></o:p></span></p> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p>&nbsp;</o:p></span></p> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p>&nbsp;</o:p></span></p> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Have fun practicing :-)<o:p></o:p></span></p> </div> </body> </html>