I will be registering for this module (COS233) next semester and was hoping somebody would be kind enough to send me the tutorials for the last semester so I can get a head start.

Any help would be really appreciated

Thanks

Clive

My email 34572457 at mylife.unisa.ac.za]]>

With regard to the Trapezoid rule: Why does the error term use the second derivative of the function rather than finctional differences (which are used in the Newton-Gregory Forward Polynomial). Where in the text book does it show how to derive this error term for a Newton-Gregory Forward Polynomial?

With regards to Simpson's rule: Why does the error term use the 4th derivative rather than the 3rd derivative as Simpson's rule only uses a 3 term Newton-Gregory Forward Polynomial where as the Trapezoid rule only uses 2 terms and the derivative in the errors differs by 2 degrees?]]>

I am in the middle of it, and am struggling quite a bit with a few of the questions. Is there anyone else that is struggling, that maybe wants to compare answers and throw some idea's around?..]]>

The most relevant text from the textbook on page 55 says:

Quote

It appears that the different behaviors depend on whether the slope of the curve is greater, less, or of opposite sign to the slope of the line (which equals +1).

Has anyone figured out which is which?

And what exactly is meant by 'interval of convergence' in the questions?]]>

Playing around with values shows that it could affect the answer somewhat.]]>

Seems to work, using example given in textbook:

octave:1> fx = '3*x+sin(x)-exp(x)' fx = 3*x+sin(x)-exp(x) octave:2> mullers(fx,0.0,0.5,1.0,3) warning: suggest parenthesis around assignment used as truth value warning: suggest parenthesis around assignment used as truth value 1.00000 0.35491 2.00000 0.36046 3.00000 0.36042 octave:3>]]>

The textbook uses MATLAB, so I'm busy trying out Octave, an open source MATLAB clone. It works very well, mostly, but there is some missing functionality, which can be found in extra packages.

For example, I had to install the octave-optim package for the fminbnd command and I'm still trying to figure out which package has the solve command (or if it's even supported by octave).

Does anyone have any experience with octave? Any advice on which extra packages should be installed or would be useful?

I'm using Debian Lenny, btw.

I've found these similar topics from previous years:

http://osprey.unisa.ac.za/phorum/read.php?322,104288

http://osprey.unisa.ac.za/phorum/read.php?232,74510

http://osprey.unisa.ac.za/phorum_2003/read.php?f=28&i=1&t=1]]>

Is there any study groups for this module in Durban ?]]>