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<DIV dir=ltr><FONT face=Arial color=#000000 size=2>Looks a bit like a Mandelbrot.</FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2>I wrote one in basic around 1987</FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2>on an IBM PC. It took 13 hours.</FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2>Later I wrote one in C and it took about</FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2>5 min. Faster platform of course but</FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2>you really want a fully compiled </FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2>executable. Then around 2008 I</FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2>wrote one in C for a digital UNIX</FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2>box and it took no time at all.</FONT></DIV>
<DIV dir=ltr><FONT face=Arial color=#000000 size=2></FONT> </DIV></DIV>
<DIV id=idSignature15586>
<DIV><FONT face=Arial color=#000000 size=2>Russell Quinn</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Mailto: <A href="mailto:qn@boxhillhs.vic.edu.au" target=_blank>qn@boxhillhs.vic.edu.au</A></FONT></DIV></DIV>
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<FONT face=Tahoma size=2><B>From:</B> sofdev-request@edulists.com.au<BR><B>Sent:</B> Wed 19/11/2008 12:00 PM<BR><B>To:</B> sofdev@edulists.com.au<BR><B>Subject:</B> sofdev Digest, Vol 45, Issue 12<BR></FONT><BR></DIV>
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Today's Topics:
1. programming and maths (Maggie Iaquinto)
2. Exam (Mark Kelly)
3. Re: Exam (Mark Kelly)
4. RE: Exam (Quentin Lydall)
----------------------------------------------------------------------
Message: 1
Date: Wed, 19 Nov 2008 10:40:58 +1100
From: "Maggie Iaquinto" <IAQUIM@bialik.vic.edu.au>
Subject: [Year 12 SofDev] programming and maths
To: <vbasic@edulists.com.au>, <php@edulists.com.au>,
<sofdev@edulists.com.au>
Cc: greyruin@gdurkin.com
Message-ID:
<C12A0D9E0ADEB241AF23E0772E9B3275D71647@bialik-dc2.bialik.vic.edu.au>
Content-Type: text/plain; charset="us-ascii"
One of our maths teachers is looking for a programming solution to the
following. Any ideas which language is best for this? Anyone willing to
give it a go?
Maggie
The task is to display successive iterations of z-> z2 +c where z = x+iy
and i is the square root of -1 and c is a complex constant.
In particular I want to be able to preset the number of iterations for a
given initial value of z (called z(0)) and a fixed (but user selectable)
value of c. I'm thinking of a maximum of 1000.
I want to see a display of the iterates in a list and a plot on the
Argand diagram of each iterate joined to the previous iterate with a
line. I want a unit circle fixed on the display . I want to be able to
show other circles as user defined. I want to be able to show the Argand
diagram with user defined min and max values of Re(z) and Im(z).
I would like a reset button to initialise everything. Ideally a zoom in
and zoom out feature would be good too.
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Message: 2
Date: Wed, 19 Nov 2008 11:12:33 +1100
From: Mark Kelly <kel@mckinnonsc.vic.edu.au>
Subject: [Year 12 SofDev] Exam
To: "Year 12 Software Development Teachers' Mailing List"
<sofdev@edulists.com.au>
Message-ID: <492359F1.5090001@mckinnonsc.vic.edu.au>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hi all. I'm playing with a post mortem.
Section C, Q5a(ii)
My answer would be: Pattie.
Did others get the same? I've since looked at Kevin's sample solution
but I disagree with his stepping through of the algorithm's workings.
Regards
Mark
--
Mark Kelly
Manager - Information Systems
McKinnon Secondary College
McKinnon Rd McKinnon 3204, Victoria, Australia
Direct line / Voicemail: 8520 9085
School Phone +613 8520 9000
School Fax +613 9578 9253
kel@mckinnonsc.vic.edu.au
Webmaster - http://www.mckinnonsc.vic.edu.au
IT Lecture notes: http://vceit.com
Moderator: IT Applications Mailing List
Most people don't realise that small kitchen sponges, when nailed to the
forehead, can really REALLY hurt.
------------------------------
Message: 3
Date: Wed, 19 Nov 2008 11:23:46 +1100
From: Mark Kelly <kel@mckinnonsc.vic.edu.au>
Subject: Re: [Year 12 SofDev] Exam
To: "Year 12 Software Development Teachers' Mailing List"
<sofdev@edulists.com.au>
Message-ID: <49235C92.4040909@mckinnonsc.vic.edu.au>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Forget what I said :-(
Good ol' Kevin's right... :-)
Mark Kelly wrote:
> Hi all. I'm playing with a post mortem.
>
> Section C, Q5a(ii)
>
> My answer would be: Pattie.
>
> Did others get the same? I've since looked at Kevin's sample solution
> but I disagree with his stepping through of the algorithm's workings.
>
> Regards
> Mark
>
--
Mark Kelly
Manager - Information Systems
McKinnon Secondary College
McKinnon Rd McKinnon 3204, Victoria, Australia
Direct line / Voicemail: 8520 9085
School Phone +613 8520 9000
School Fax +613 9578 9253
kel@mckinnonsc.vic.edu.au
Webmaster - http://www.mckinnonsc.vic.edu.au
IT Lecture notes: http://vceit.com
Moderator: IT Applications Mailing List
Most people don't realise that small kitchen sponges, when nailed to the
forehead, can really REALLY hurt.
------------------------------
Message: 4
Date: Wed, 19 Nov 2008 11:40:11 +1100
From: "Quentin Lydall" <qly@beaconhills.vic.edu.au>
Subject: RE: [Year 12 SofDev] Exam
To: "Year 12 Software Development Teachers' Mailing List"
<sofdev@edulists.com.au>
Message-ID:
<AFC3563D81D1044097735D5F6A3DBBE50151CD6A@valley02.Beaconhills.beaconhills.vic.edu.au>
Content-Type: text/plain; charset="utf-8"
Sec C Q5 ii: Because it initialises Count_Coordinator to 1 then increments it first thing in REPEAT, it has to be Charles.
Quentin Lydall
Head of ICT
Beaconhills College Valley Campus
30-34 Toomuc Valley Road,
Pakenham
3810
Phone: 1300 002 225 Extn 3016
 Please consider the environment before printing my email
-----Original Message-----
From: sofdev-bounces@edulists.com.au [mailto:sofdev-bounces@edulists.com.au] On Behalf Of Mark Kelly
Sent: Wednesday, 19 November 2008 11:24 AM
To: Year 12 Software Development Teachers' Mailing List
Subject: Re: [Year 12 SofDev] Exam
Forget what I said :-(
Good ol' Kevin's right... :-)
Mark Kelly wrote:
> Hi all. I'm playing with a post mortem.
>
> Section C, Q5a(ii)
>
> My answer would be: Pattie.
>
> Did others get the same? I've since looked at Kevin's sample solution
> but I disagree with his stepping through of the algorithm's workings.
>
> Regards
> Mark
>
--
Mark Kelly
Manager - Information Systems
McKinnon Secondary College
McKinnon Rd McKinnon 3204, Victoria, Australia
Direct line / Voicemail: 8520 9085
School Phone +613 8520 9000
School Fax +613 9578 9253
kel@mckinnonsc.vic.edu.au
Webmaster - http://www.mckinnonsc.vic.edu.au
IT Lecture notes: http://vceit.com
Moderator: IT Applications Mailing List
Most people don't realise that small kitchen sponges, when nailed to the
forehead, can really REALLY hurt.
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