1 import math

     2 

     3 def linspace(a, b, N):

     4     lns = []

     5     step = (float(b) - float(a)) / float(N - 1)

     6     print step

     7     for i in range(N):

     8         lns.append(a + i*step)

     9 

    10     return lns

    11 

    12 def sinsin_func():

    13     x = linspace(0, 5, 11)

    14     sin_list = []

    15     for i in x:

    16         sin_list.append(math.sin(i) + math.sin(10*i))

    17 

    18     return sin_list

    19 

    20 def find_root_range():

    21     sin_list = sinsin_func()

    22     for i, sins in enumerate(sin_list):

    23         if (sin_list[i] > 0 and sin_list[i+1] < 0) or (sin_list[i] > 0 and sin_list[i+1] < 0):

    24             print "Roots lie between: %f and %f" % (sin_list[i], sin_list[i+1])

    25         if sin_list[i] == 0:

    26             print "%f is the root" % sin_list[i]

    27 

    28 find_root_range()