Math 21a, Fall 2007
Asteroid project Math 21a, Multivariable Calculus
Asteroid belt
Course head: Oliver Knill
Office: SciCtr 434

Asteroid gallery

Le Petit Prince, by Antoine de Saint-Exupéry
The little Princeby Antoine de Saint-Exupéry, (online book).
HOMEWORK PROBLEM A: (week 4, second HW set): to get full credit for this 5'th homework problem, submit a picture to You have to submit the picture from an email account which we have on file. Send the picture (preferrably 600x300 pixels in JPG or PNG form) as an attachment and write into the subject header: ASTEROID YOURFIRSTNAME YOURLASTNAME. The email can be empty but you could add into the email body a sentence explaining the context of the picture. The picture will be scaled to 600x300 pixels. So make it twice as long as wide. Otherwise it will be rescaled and look distorted. Here is an example.

Background: following the success of Marblebook of fall 2006, we lauch a new project "asteroid belt". You might have read that the international astronomical union has given asteroid 1994 GT9 the new name 7307 Takei, in honor of George Takei, who played Hikaru Sulu in the original Star treck series. In this homework problem, you submit an arbitrary picture by email. It will be used as a texture to color various asteroid shapes. Applying the texture to the solid is what one calles a parametrization of a surface. Here are some asteroids prototypes built in our asteroid factory. Your asteroid will be called by your name.

Here are the texture files:
Questions and comments to
Math21b | Math 21a | Fall 2007 | Department of Mathematics | Faculty of Art and Sciences | Harvard University