CS/MATH 3414 Assignment #9
Date Assigned: April 3, 2002
Date Due: Part 1: April 8, 2002, Part 2: April 12, 2002
Part 1:
- (5 points) Problem 7.2.12 (page 346) of your textbook.
- (10 points) Problem 7.2.13 (page 346) of your textbook.
- (10 points) Problem 7.2.21 (page 347) of your textbook.
- (10 points) Problem 7.2.22 (page 347) of your textbook.
Part 2:
- (15 points) Choose a free-form parametric curve in 2D. One example
is the spiral on page 349 of your textbook. Another example could be
a smooth letter of the alphabet such as "S", "C", or even "P" (but you
have to be careful here, since it has sharp turns). Yet another example
could be some logo or symbol, like the Yin-Yang. Draw your curve on
graph paper, and record values of x and y for a resonable number of
points. Reproduce it by using parameteric spline functions. For full
credit, show your curve, how you recorded the data, MATLAB code showing
the parameteric spline, and a picture of the spline itself.
Depending on the continuity of your curve, you may need to use more
than one spline (this can happen for either x, or y, or both). See, for
instance Fig. 7.8 of your textbook (but that is not a parametric
spline). More details on solving this problem were given in class
on Wednesday, April 3. You are welcome to use the MATLAB spline
function but notice that it imposes the extra conditions in a different
way, not quite the "natural cubic spline" way we learned in class.
Extra Credit: If you are truly adventurous, draw out your name as
separate parametric splines.