**VO "Geometric Modeling"**will be graded on the basis of oral exams that cover the material taught in class.**PS "Geometric Modeling"**will be graded on the basis of individual assignments.

- Weekly individual assignments have to be worked out by each student.
- Unless anounced explicitly otherwise, after each VO lecture (on Fridays) I will post a sheet with new assignments no later than on the subsequent Monday.
- All assigments (given so far) are available as one PDF file on the webpage of the course.
- All new assignments will be discussed in the PS class in the week following the post date.
- Hence, in general you will have about one and a half weeks to work out the assignments. (There might be exceptions to this rule which I will announce clearly.)
- At the beginning of each PS class you will be asked to declare which assignments you are willing to present in class. So, please, make sure to be on time!
- Your grade on the PS assignments will be based on the number of assignments for which you declared a willingness to present them and on your performance at the blackboard/whiteboard during the presentation of the assignments.
- In addition, I will take notes of other noteworthy contributions of students during class.
- In order to get a passing grade you are required to mark
at least MIN assignments as the ones which you are willing to present
in class, where MIN is computed as follows:
- Let X be the total number of assignments posted.
- Let Y be the total number of different assignment sheets.
- Let MAX := (X/Y) * (Y-1).
- Then MIN := 0.5 * MAX.

- You can get credit for the assignments worked out only if you attend the PS personally.
- You are not required to hand-in your assignments, unless explicitly requested for some particular assignments.
- You may cooperate and discusss the assignments with other students. (Of course, with the exception of those few assignments for which I explicitly request everybody to come up with his/her own solution!)
- Similarly, you are welcome to consult textbooks or online sources.
- Frankly speaking, I do not care whether or not you discuss assignments among your peers, or how you come up with a solution.
- However, I will not tolerate plagiarism: Once you mark an assignment as
solved then I expect you to fully
understand your solution. That is,
**you'll have to be able to argue why your solution ought to be correct, and you have to be able to answer questions concerning (sub-)problems related to your solution.** - In any case, if presented with a full line of arguments then I will be much more lenient towards "solutions" that fall apart. On the other hand, phrases like "It seems like..." or "I believe that..." or "This is true!!!" (without any rational why it should be true) simply do not belong to the line of reasoning employed by geometric modeling, and I will react harshly to such "solutions". Hopes and fears are an important part of everybody's life, but geometric modeling is not about hopes or fears but about rigorous arguments!!
- As a rule of thumb, if you are not convinced that you can outline a full suite of arguments then it is likely smarter not to claim credit for an assignment and have one assignment less to your credit, than to risk being caught by me.
- If you'd come up with two or more solutions then I'd advise you to focus on one solution and work it out in detail, rather than have several "half-baked" solutions.
- For specific assignments that are to be handed in in writing I do not allow cooperation since I do not want to read the same solution several times, once verbatim identically, once with "I" replaced by "J", once with "I" replaced by "K", and so on. Part of the reason why I want you to work out written solutions is that I would like you all to practice writing up solutions. (Clearly, this goal is not met if one solution would be copied multiple times.)

file last modified: Friday, 06-Oct-2017 15:10:58 CEST
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