Begining exercises from chapter 7

Author: kainpets

3.17.py

@@ -1,20 +1,20 @@
-# Program to compute the square roots of a number provided by a user
-
-import math
-
-print("This program estimates the square root of a number")
-
-num = float(input("Enter a number: "))
-timesToGuess = int(input("Enter the number of times I can improve my algorithm: ")) 
-guess = num/2
-answer = math.sqrt(num)
-
-
-for i in range(1, timesToGuess):
-    guess = (guess + (num/guess))/2
-
-finalAnswer = answer - guess
-
-print("My guess is: ", guess)
-print("The answer is: % 0.4f" % (answer))
-print("I was this close to guessing correctly: %0.4f" % (finalAnswer))
+# Program to compute the square roots of a number provided by a user
+
+import math
+
+print("This program estimates the square root of a number")
+
+num = float(input("Enter a number: "))
+timesToGuess = int(input("Enter the number of times I can improve my algorithm: ")) 
+guess = num/2
+answer = math.sqrt(num)
+
+
+for i in range(1, timesToGuess):
+    guess = (guess + (num/guess))/2
+
+finalAnswer = answer - guess
+
+print("My guess is: ", guess)
+print("The answer is: % 0.4f" % (answer))
+print("I was this close to guessing correctly: %0.4f" % (finalAnswer))

6.10.py

@@ -1,16 +1,16 @@
-# Program to create acronyms from user provided strings using functions
-
-def acronym(phrase):
-    acr = ""
-    for word in phrase.split():
-        acr = acr + word[0]
-        acr = acr.upper()
-    return acr
-
-def main():
-    phrase = input("Enter the phrase you want acronym of: ")
-    print("", acronym(phrase))
-    
-main()
-
-
+# Program to create acronyms from user provided strings using functions
+
+def acronym(phrase):
+    acr = ""
+    for word in phrase.split():
+        acr = acr + word[0]
+        acr = acr.upper()
+    return acr
+
+def main():
+    phrase = input("Enter the phrase you want acronym of: ")
+    print("", acronym(phrase))
+    
+main()
+
+

6.11.py

@@ -1,16 +1,16 @@
-# Program to modify the list by squaring each entry
-
-def squareEach(nums):
-    newList = []
-    for i in nums:
-        i = i**2
-        newList.append(i)
-    return newList
-
-def main():
-    nums = [1, 2, 3, 4, 5, 6]
-    print("", squareEach(nums))
-    
-main()
-
-
+# Program to modify the list by squaring each entry
+
+def squareEach(nums):
+    newList = []
+    for i in nums:
+        i = i**2
+        newList.append(i)
+    return newList
+
+def main():
+    nums = [1, 2, 3, 4, 5, 6]
+    print("", squareEach(nums))
+    
+main()
+
+

6.12.py

@@ -1,13 +1,13 @@
-# Program to return the sum of the numbers in the list
-
-def sumList(nums):
-    count = 0
-    for i in nums:
-        count += i
-    return count      
-
-def main():
-    nums = [1, 2, 133]
-    print(sumList(nums))
-
-main()
+# Program to return the sum of the numbers in the list
+
+def sumList(nums):
+    count = 0
+    for i in nums:
+        count += i
+    return count      
+
+def main():
+    nums = [1, 2, 133]
+    print(sumList(nums))
+
+main()

6.13.py

@@ -1,17 +1,17 @@
-# Program to convert strings which are numbers to numbers using functions
-
-def toNumbers(strList):
-    newList = []
-    for i in strList:
-        i = int(i)
-        newList.append(i)
-    return newList
-
-
-def main():
-    strList = ["1", "2", "3"]
-    print(strList)
-    print(toNumbers(strList))
-
-main()
-    
+# Program to convert strings which are numbers to numbers using functions
+
+def toNumbers(strList):
+    newList = []
+    for i in strList:
+        i = int(i)
+        newList.append(i)
+    return newList
+
+
+def main():
+    strList = ["1", "2", "3"]
+    print(strList)
+    print(toNumbers(strList))
+
+main()
+    

6.14.py

@@ -1,30 +1,30 @@
-# Program to compute the sum of squares of numbers read from a file using functions
-#   from 3 previous exercises
-
-def toNumbers(strList):
-    newList = []
-    for i in strList:
-        i = float(i)
-        newList.append(i)
-    return newList
-
-def squareEach(nums):
-    newList = []
-    for i in nums:
-        i = i**2
-        newList.append(i)
-    return newList
-
-def sumList(nums):
-    count = 0
-    for i in nums:
-        count += i
-    return count
-# The function doesn't work but neither does the code answer given by the author
-#   The cause might be the fact the input file isn't specified
-
-def main():
-    file = open("listOfSquares", "r").readlines()
-    print(sumList(squareEach(toNumbers(file))))
- 
-main()
+# Program to compute the sum of squares of numbers read from a file using functions
+#   from 3 previous exercises
+
+def toNumbers(strList):
+    newList = []
+    for i in strList:
+        i = float(i)
+        newList.append(i)
+    return newList
+
+def squareEach(nums):
+    newList = []
+    for i in nums:
+        i = i**2
+        newList.append(i)
+    return newList
+
+def sumList(nums):
+    count = 0
+    for i in nums:
+        count += i
+    return count
+# The function doesn't work but neither does the code answer given by the author
+#   The cause might be the fact the input file isn't specified
+
+def main():
+    file = open("listOfSquares", "r").readlines()
+    print(sumList(squareEach(toNumbers(file))))
+ 
+main()

6.15.py

@@ -1,16 +1,16 @@
-# Program that draws several faces of varying size in a single window using
-#   specified function
-
-from graphics import *
-
-def drawFace(center, size, win):
- return   
-
-
-def main():
-    center = Point(5, 5)
-    size = 2.5
-    win = GraphWin("", 10, 10)
-    win = setCoords(0, 0, 10, 10)
-
-main()
+# Program that draws several faces of varying size in a single window using
+#   specified function
+
+from graphics import *
+
+def drawFace(center, size, win):
+ return   
+
+
+def main():
+    center = Point(5, 5)
+    size = 2.5
+    win = GraphWin("", 10, 10)
+    win = setCoords(0, 0, 10, 10)
+
+main()

6.6.py

@@ -1,53 +1,53 @@
-# Program to calculate the area of a triangle given the length of its
-#   three sides as parameters
-
-import math
-from graphics import *
-
-
-def square(x):
-    return x ** 2
-
-def distance(p1, p2):
-    dist = math.sqrt(square(p2.getX() - p1.getX())
-                     + square(p2.getY() - p2.getY()))
-    return dist
-
-def triangleArea(a, b, c):
-    s = (a+b+c) / 2.0
-    area = math.sqrt(s*(s-a)*(s-b)*(s-c))
-    return area
-
-def main():
-    win = GraphWin("Draw a Triangle")
-    win.setCoords(0.0, 0.0, 10.0, 10.0)
-    message = Text(Point(5, 2), "Click on three points")
-    message.draw(win)
-
-    # Get and draw three vertices of triangle
-    p1 = win.getMouse()
-    p1.draw(win)
-    p2 = win.getMouse()
-    p2.draw(win)
-    p3 = win.getMouse()
-    p3.draw(win)
-
-    # Use Polygon object to draw the triangle
-    triangle = Polygon(p1, p2, p3)
-    triangle.setFill("peachpuff")
-    triangle.setOutline("cyan")
-    triangle.draw(win)
-
-    # Calculate the perimeter and area of the triangle
-    d1 = distance(p1,p2)
-    d2 = distance(p2,p3)
-    d3 = distance(p3,p1)
-    perim = distance(p1,p2) + distance(p2,p3) + distance(p3,p1)
-    message.setText("""Perimeter is: %0.2f\nThe area is: %0.2f"""
-                    % (perim, triangleArea(d1, d2, d3)))
-
-    # Wait for another click to exit
-    win.getMouse()
-    win.close()
-
-main()
+# Program to calculate the area of a triangle given the length of its
+#   three sides as parameters
+
+import math
+from graphics import *
+
+
+def square(x):
+    return x ** 2
+
+def distance(p1, p2):
+    dist = math.sqrt(square(p2.getX() - p1.getX())
+                     + square(p2.getY() - p2.getY()))
+    return dist
+
+def triangleArea(a, b, c):
+    s = (a+b+c) / 2.0
+    area = math.sqrt(s*(s-a)*(s-b)*(s-c))
+    return area
+
+def main():
+    win = GraphWin("Draw a Triangle")
+    win.setCoords(0.0, 0.0, 10.0, 10.0)
+    message = Text(Point(5, 2), "Click on three points")
+    message.draw(win)
+
+    # Get and draw three vertices of triangle
+    p1 = win.getMouse()
+    p1.draw(win)
+    p2 = win.getMouse()
+    p2.draw(win)
+    p3 = win.getMouse()
+    p3.draw(win)
+
+    # Use Polygon object to draw the triangle
+    triangle = Polygon(p1, p2, p3)
+    triangle.setFill("peachpuff")
+    triangle.setOutline("cyan")
+    triangle.draw(win)
+
+    # Calculate the perimeter and area of the triangle
+    d1 = distance(p1,p2)
+    d2 = distance(p2,p3)
+    d3 = distance(p3,p1)
+    perim = distance(p1,p2) + distance(p2,p3) + distance(p3,p1)
+    message.setText("""Perimeter is: %0.2f\nThe area is: %0.2f"""
+                    % (perim, triangleArea(d1, d2, d3)))
+
+    # Wait for another click to exit
+    win.getMouse()
+    win.close()
+
+main()