Question

Problem 1

Part A

Define a fuction dashes() that draws multiple dashes and takes 3 parameters:

1. t, a turtle object

2. length, the length of each dash as well as the space between two consecutive dashes

3. num, the number of dashes to draw

Part B

Write code that produces 10 dashes of length (and gap) 20. HINT: Remember to import turtle in order to create your actual parameters.

Problem 2 Write a function evenIntegers() that takes one parameter:

1. numList, a list of numbers

The function prints the total number of even numbers in a list.

Answer 1

PROBLEM-1

Screenshot of output:

Code:

#Part-A

import turtle #Import turtle module for drawing.
t = turtle.Turtle()#Create a turtle object t.
def dashes(t, n, l):#Define the function dashes having parameters turtle object,number of dashes(n),dash length and gap between dashes(l)
for i in range(n):#To create n number of dashes.
t.forward(l)#To create a dash of length l.
t.penup()#To initialize gap between two dashes
t.forward(l)#To specify number of gap between two dashes
t.pendown()#To take the position of the next dash which is going to be drawn in next iteration.
turtle.exitonclick()#To exit from the screen on clicking on the screen.

#Part-B

dashes(t, 10, 20)#To draw 10 dashes of length (and gap) 20.'t' is the turtle object.

PROBLEM-2:

Screenshot of output:

Code:

numList = [1,45,87,22,10,6,12,4]#List of numbers.
def evenintegers(nuLlist):#The function evenintegers() calculates number of even numbers in the list numList which #is passed as parameter.
count = 0#This variables counts the number of even numbers.
for i in range(len(numList)):
if numList[i] % 2 == 0:#If the remainder is 0 then the number is divisible by 2 i.e the number is even.
count += 1#Increment the count as the number is even
print "\nThe list is:"#Print the list
print numList[0:len(numList)]
print "\nNumber of even numbers in the list numlist is:"#Print number of even numbers.
print count
evenintegers(numList)#Call the function to calculate number of even numbers.