Search the history of over billion web pages on the Internet. The following are two excellent websites from German teachers using Derive in Math education.
Grude's homepage you can find a very fine contribution on Cellular Automata.
Walter Wegscheider put this course as an online course on the web together with many additional resources and links. I gave a workshop on DEs based on course materials provided by Gunter Redl, so I added this paper too together with some English explanations. Many tasks in the WS are provided for students and WS-participants.
You can download both in revised and updated form as pdf-files and there you will find more explanations. The second extended article is the result of a Swedish-Austrian cooperation between David Sjostrand an me.
This was a challenge for me to wrap "Richtungsfeld differentialgleichung zeichnen online dating" procedures in a program. Finally we decided to give a joint presentation at the Matematik-Bienallen in Malmo, last January. We had much fun in the audi- ence and we would like to share our product with you. I'd like to call your attention to D Grude's website see Information.
I am very grateful for many valueable co mm ents and support from Theresa Shelby Richtungsfeld differentialgleichung zeichnen online dating Albert Rich.
Many new members have joint the DUG during the first months of A warm welcome to you all. Torbjom Aim sent a contribution about Pollard-Factorization, which will be published soon. Among others I received an article from H. Geyer, who presents a roboter in 3D using the slider bars to move his "little man", and an extended article dealing with "Actuarial Mathematic" from MacDonald Phillips. In the meanwhile an interesting discussion was raised about the function value of sign 0which is not finished.
I'll report about it next time. I'll close repeating the invitation to join the DUG meeting in Montreal and wishing you all a wonder- ful summer. I am looking forward to meeting you with DNL 55 in September. It is published at least four times a year with a contents of 44 pages minimum. The goals of the DNL Richtungsfeld differentialgleichung zeichnen online dating to enable the ex- change of experiences made with DERIVE and the TI Voyage as well as to create a group to discuss the possibilities of new methodical and didactical manners in teaching mathematics.
Please send all contributions to the Editor. Non-English speakers are encouraged to write their contributions in English to rein- force the international touch of the DNL. It must "Richtungsfeld differentialgleichung zeichnen online dating" said, though, that non-English articles will be warmly welcomed nonethe- less.
Your contributions will be edited but not assessed. By submitting articles the author gives his consent for reprinting it in the DNL. September Deadline 15 August Preview: Contributions waiting to be published Finite continued fractions St.
Bohm, AUT Modelling real date: Geyer, GER and others Impressum: Can this be changed to be visible in ver. I'd like to add another comment: While the resulting, very bulky, equation is linear in k, it is definitely not linear in K. Since there are only two parameters to estimate, it is possible to use any two rows of data and set up two equations in two unknows to obtain initial guesses for the parmeters.
However, in solving the equati- ons for the
Richtungsfeld differentialgleichung zeichnen online dating guesses, k and K turn out to be complex values. This presented a problem since my nonliear regression routines in the User directory of Derive 6 did not handle datasets with complex numbers or complex parameters.
So I modified them so they do! I'm sure complex answers were not expected, but given that there are only three data points, that's the best I can come up with at this Richtungsfeld differentialgleichung zeichnen online dating. So, I get the following: The adjusted R A 2 is only.
But that's to be expected with only 3 data points. Any other thoughts on solving this problem would be greatly appreciated. If anyone wants a copy of my latest regression routines they also handle weighted regressions nowplease email me at phillipsm gao. In Derive 5, when as- signments are simplified, the result is just the simplified right side of the assignment. For example, when the assignment x: This change in the behavior of Derive was made for two reasons: When an expression is simplified in Derive, the result should be equivalent to the origi- nal expression.
In the example above, 5 is not equivalent to the assignment x: In Derive 5 if an assignment is entered and simplified on the Expression Entry line, only the simpli- fied right side of the assignment appears as an expression in the algebra window. In Derive 6, the entire assignment appears as an expression in the algebra window.
Thus if the algebra window is saved as a dfw or mth file, it is clear that an assignment was made when the file is subse- quently loaded. However, as you discovered, for efficiency reasons, when assignments to local variables made within function definitions are simplified, only the simplified right side is returned.