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<DIV><FONT face=Arial size=2>Just a little busy right now, but I'm happy to put
something together in VB Express.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>For Maths teachers, I have a number of applications
in the upper senior area: Groups, Leslie Matrices, Markov Chains. I'm always
interested in experimenting with Maths applications.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I'm in the research stage of a new edition of
'Programming with Visual Basic' (Express), so challenges like this are good idea
starters.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>regards,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Graeme Summers</FONT></DIV>
<DIV> </DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=IAQUIM@bialik.vic.edu.au
href="mailto:IAQUIM@bialik.vic.edu.au">Maggie Iaquinto</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=vbasic@edulists.com.au
href="mailto:vbasic@edulists.com.au">vbasic@edulists.com.au</A> ; <A
title=php@edulists.com.au
href="mailto:php@edulists.com.au">php@edulists.com.au</A> ; <A
title=sofdev@edulists.com.au
href="mailto:sofdev@edulists.com.au">sofdev@edulists.com.au</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Cc:</B> <A title=greyruin@gdurkin.com
href="mailto:greyruin@gdurkin.com">greyruin@gdurkin.com</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, November 19, 2008 9:40
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [Visual Basic] programming and
maths</DIV>
<DIV><BR></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">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?<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Maggie<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><B><FONT face=Arial color=red size=3><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 12pt; COLOR: red; FONT-FAMILY: Arial">The
task is to display successive iterations of z-> z<SUP>2 </SUP>+c where z =
x+iy and i is the square root of -1 and c is a complex
constant.<o:p></o:p></SPAN></FONT></B></P>
<P class=MsoNormal><B><FONT face=Arial color=red size=3><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 12pt; COLOR: red; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></B></P>
<P class=MsoNormal><B><FONT face=Arial color=red size=3><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 12pt; COLOR: red; FONT-FAMILY: Arial">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.<o:p></o:p></SPAN></FONT></B></P>
<P class=MsoNormal><B><FONT face=Arial color=red size=3><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 12pt; COLOR: red; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></B></P>
<P class=MsoNormal><B><FONT face=Arial color=red size=3><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 12pt; COLOR: red; FONT-FAMILY: Arial">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).<o:p></o:p></SPAN></FONT></B></P>
<P class=MsoNormal><B><FONT face=Arial color=red size=3><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 12pt; COLOR: red; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></B></P>
<P class=MsoNormal><B><FONT face=Arial color=red size=3><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 12pt; COLOR: red; FONT-FAMILY: Arial">I
would like a reset button to initialise everything. Ideally a zoom in and zoom
out feature would be good too</SPAN></FONT></B><B><FONT face=Arial
color=blue><SPAN
style="FONT-WEIGHT: bold; COLOR: blue; FONT-FAMILY: Arial">.<o:p></o:p></SPAN></FONT></B></P>
<P class=MsoNormal><B><FONT face=Arial color=blue size=3><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 12pt; COLOR: blue; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></B></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P></DIV>_______________________________________________
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