Hi,

I'm learning Scheme and wondering if you could help program the

follow: h h

hhh

H(sub a)= h h a

hope you know what i mean

According to the simplified Predator-Prey model w(subn+1) and

c(subn+1), the populations of wolves and caribou in year n+1, can be

determined from the populations in year n by the following equations:

c(sub n+1) = A c(sub n) - B c(sub n) w(sub n)

w(sub n+1) = C w(sub n) + D c(sub n) w(subn)

where A = 1.1, B =0.01, C = 0.9, and D = 0.02.

Write 2 programs (using state variables wolves, caribou, n, and k)

which run the wolves-caribou model for n years and outputs its results

every k years. One is recursive and the other iterative.

Sample Ouput for checking

in this problem we start with 10 wolves and 10 caribou and obtain

after 2 years, printing every year, the ouput:

(population 10 10 2 1)

11.0 10.0

12.1 9.9

Thank you, please post or email me at

Sincerely,

Tran