# Some more list manipulation


my_list = ['apple', 'banana', 'guava', 'pineapple']
print my_list
print "second element is", my_list[2]
print "The length of the list is", len(my_list)
del my_list[2]
print "The new list is", my_list

position = my_list.index('pineapple')
print "Position of pineapple is", position
del my_list[position]
print "List after removing pineapple", my_list

print "The length of the list is", len(my_list)
my_list.append('pomegranate')
print my_list

# while loops

C = -50
dC = 2
C_max = 60

print "Celsius\tFahrenheit"
while C <= 60 :
	F = 9.0/5.0 * C + 32
	# print C,"\t",F
	C += dC

print "____________________________________________________________"
# Computing the exponential function
from math import factorial

# Want to compute my_exp(x)
x = input("x = ")
x = float(x)
N = input("No of terms to be computed : ")

k = 0
val_exp = 0
while k <= N :
	val_term = x**k / factorial(k)
	val_exp += val_term
	k += 1

print "exp(%g) = %10.5F (approximated to %d terms)" % (x, val_exp, N)

# Boolean values

def truefalse(expr) :
    if expr :
        print "True"
    else :
        print "False"

print True, truefalse(True)
print False, truefalse(False)
print 4, truefalse(4)
print 0, truefalse(0)
print 3.0, truefalse(3.0)
print "ab", truefalse("ab")
print "", truefalse("")
x = 10
y = 5
print "x < 10 and y > 3", truefalse(x < 10 and y > 3)
print "x == 10 and y > 3", truefalse(x == 10 and y > 3)
print "x != 11 and y > 3", truefalse(x == 10 and y > 3)
print "not x == 11 and y > 3", truefalse(x == 11 and y > 3)
print "not (x == 11 and y > 3)", truefalse(not (x == 11 and y > 3))
print "x == 10 or y == 10", truefalse(x == 10 or y == 10)