Add complete assignment description and testing code.

testing_code/p1.py

@@ -0,0 +1,6 @@
+r = 8.0
+pi = 3.1415
+circle_area = pi * r * r
+circle_circum = pi * 2 * r
+sphere_vol = (4.0 / 3.0) * pi * r * r * r
+sphere_surf_area = 4 * pi * r * r

testing_code/p2.py

@@ -0,0 +1,14 @@
+a = True
+b = False
+x = 7
+if a:
+    x = 5
+    if b:
+        y = 4
+    else:
+        y = 2
+
+z = (x * 3 * 7) / y
+
+if z > 10:
+    y = 5

testing_code/p3.py

@@ -0,0 +1,9 @@
+# Foo computes some function of a, b, and c.
+def foo(a, b, c):
+    x = a * b
+    y = x / c
+    z = y * y
+    return z
+
+foo(1, 2, 3)
+foo(1.0, 2.0, 3.0)

testing_code/p4.py

@@ -0,0 +1,19 @@
+# This function computes and returns the n'th Fibonacci number.
+def fib(n):
+    f0 = 0
+    f1 = 1
+    i = 0
+    while i < n:
+        fi = f0 + f1
+        f0 = f1
+        f1 = fi
+        i = i + 1
+
+    return f0
+
+fib(0)
+fib(1)
+fib(2)
+fib(3)
+fib(4)
+fib(5)