Python 3 Math Module

farhanjaved47 · farhanjaved47 · commit fda20ebb2d26 · 2019-12-15T14:46:18.000+05:00
diff --git a/Python3StandardLibrary/BuiltIn.py b/Python3StandardLibrary/BuiltIn.py
@@ -0,0 +1,60 @@
+"""
+Farhan Javed
+farhan.javed47@gmail.com
+12/11/2019
+Working with basic Python built in functions
+"""
+
+
+def minimum(a, b):
+    return min(a, b)
+
+
+def roundOff(number):
+    return round(number)
+
+
+def absoluteValue(number):
+    return abs(number)
+
+
+def power(base, exponent):
+    return pow(base, exponent)
+
+
+def main():
+    print(min('Farhan', 'Farah'))  # string is compared based on which letter comes first
+    print(round(41.3))
+    print(absoluteValue(-2323.2))
+    probabilityOfOne = 1/6
+    numberOfTimes = 2
+    print(power(probabilityOfOne, numberOfTimes))
+
+    # Smallest to Largest
+    pointsInAGame = [0, -10, -15, -2, 1, 12]
+    sortedGame = sorted(pointsInAGame)
+    print(sortedGame)
+
+    names = ['Sue', 'Jerry', 'Linda']
+    print(sorted(names))
+    mixedCase_names = ['Sue', 'Jerry', 'Linda']
+    print(sorted('My favourite child is Linda'.split(), key=str.upper))
+
+    print(sorted(pointsInAGame, reverse=True))
+
+    leaderBoard = {
+        231: 'Farhan',
+        123: 'Alfred',
+        432: 'Ryan'
+    }
+
+    print( leaderBoard.get((sorted(leaderBoard, reverse=True))[0]))
+    # print the value of the highest score in a dictionary
+    # (Score, Name)
+
+    students = [('alice', 'B', 12), ('eliza', 'A', 16), ('tega', 'C', 9), ('harry', 'A+', 18)]
+    # name, grade, marks
+    print(sorted(students, reverse=True, key=lambda student: student[2]))  # sorting on the marks of each student
+
+
+if __name__ == '__main__': main()
diff --git a/Python3StandardLibrary/MathModule-IterTools.py b/Python3StandardLibrary/MathModule-IterTools.py
@@ -0,0 +1,44 @@
+"""
+Farhan Javed
+farhan.javed47@gmail.com
+12/15/2019
+Basic Math functionality in python 3 - IterTools module
+https://docs.python.org/3/library/math.html
+"""
+import itertools
+
+
+def main():
+    # Infinite Counting
+    for x in itertools.count(50, 100):  # will count from 50 to infinity
+        print(x)
+        if x == 150:  # or any other condition
+            break
+    counter = 0
+    # Infinite Cycling
+    for c in itertools.cycle([1, 'a', 2, 'b']):
+        print(c)
+        counter += 1
+        if counter == 20:
+            break
+    # Infinite Repeating
+
+    for r in itertools.repeat(True):
+        print(r)
+        counter += 1
+        if counter == 40:
+            break
+    # Permutations and Combinations
+    # Permutations is different orders of things. Order does matter - Factorial
+    # Combinations takes different combinations of a smaller set from a larger set. Order does not matter.
+
+    election = {1: 'Barb', 2: 'Karen', 3: 'Erin'}
+    for p in itertools.permutations(election.values()):
+        print(p)  # 3! basically
+
+    colors_for_painting = ['Red', 'Blue', 'Orange', 'Purple', 'Pink']
+    for c in itertools.combinations(colors_for_painting, 2):
+        print(c)
+
+
+if __name__ == '__main__': main()
diff --git a/Python3StandardLibrary/MathModule-Part1.py b/Python3StandardLibrary/MathModule-Part1.py
@@ -0,0 +1,34 @@
+"""
+Farhan Javed
+farhan.javed47@gmail.com
+12/15/2019
+Basic Math functionality in python 3 - Part 1
+https://docs.python.org/3/library/math.html
+"""
+import math
+
+
+def main():
+    # constants in the math module
+    print(math.pi)  # Pi constant
+    print(math.e)  # The Euler's constant
+    print(math.nan)  # Not a number
+    print(math.inf)  # +ive infinity
+    print(-math.inf)  # -ive infinity
+
+    # basic trigonometry
+    # trigonometric functions take angles in randians
+    angle_in_degrees = 90
+    angle_in_radians = math.radians(angle_in_degrees)
+    print(math.sin(angle_in_radians))
+    print(math.cos(angle_in_radians))
+    print(math.tan(angle_in_radians))
+
+    # Ceiling and floor functions work on the closest integer
+    my_age = 24.6
+    my_salary = 45.8
+    print(f'My age is {math.floor(my_age)}')
+    print(f'My salary is {math.ceil(my_salary)}')
+
+
+if __name__ == '__main__': main()
diff --git a/Python3StandardLibrary/MathModule-Part2.py b/Python3StandardLibrary/MathModule-Part2.py
@@ -0,0 +1,24 @@
+"""
+Farhan Javed
+farhan.javed47@gmail.com
+12/15/2019
+Basic Math functionality in python 3 - Part 2
+https://docs.python.org/3/library/math.html
+"""
+import math
+
+
+def main():
+    factorial = 10
+    square_root = 289
+    print(math.factorial(factorial))  # prints the factorial of any given number
+    print(math.sqrt(square_root))  # prints the square root of the given number
+
+    # Math module also provide a built in function to calculate the GCD
+    # GCD is the greatest common divisor for 2 number. Helps to reduce large fractions
+    numerator = 2048
+    denominator = 1024
+    print(math.gcd(numerator, denominator))
+
+
+if __name__ == '__main__': main()
diff --git a/Python3StandardLibrary/MathModule-Random.py b/Python3StandardLibrary/MathModule-Random.py
@@ -0,0 +1,33 @@
+"""
+Farhan Javed
+farhan.javed47@gmail.com
+12/15/2019
+Basic Math functionality in python 3 - Random functions
+https://docs.python.org/3/library/math.html
+"""
+import random
+
+
+def main():
+    print(random.random())  # prints a random number between 0 and 1
+    decider = random.randrange(2)  # randrange(2) will give a value of 0 or 1 as it is exclusive.
+    if decider:
+        print('tails')
+    elif not decider:
+        print('heads')
+
+    print(random.randrange(1, 7))  # mimic a dice roll
+
+    lottery_winners = random.sample(range(100), 5)
+    print(sorted(lottery_winners))
+
+    possible_pets = ['cat', 'dog', 'lizard']
+    print(random.choice(possible_pets))
+
+    cards = ['Jack', 'Queen', 'King', 'Ace']
+    random.shuffle(cards)
+    print(cards)
+
+
+
+if __name__ == '__main__': main()
diff --git a/Python3StandardLibrary/MathModule-Statistics.py b/Python3StandardLibrary/MathModule-Statistics.py
@@ -0,0 +1,22 @@
+"""
+Farhan Javed
+farhan.javed47@gmail.com
+12/15/2019
+Basic Math functionality in python 3 - Statistics module
+https://docs.python.org/3/library/math.html
+"""
+import statistics
+
+
+def main():
+    agesData = [10, 13, 14, 12, 11, 10, 11, 10, 15]
+    print(statistics.mean(agesData))
+    print(statistics.mode(agesData))
+    print(statistics.median(agesData))
+    print(sorted(agesData))
+
+    print(statistics.variance(agesData))  # the variance can take an optional second argument of mean (xbar)
+    print(statistics.stdev(agesData))  # the variance can take an optional second argument of mean (xbar)
+    
+
+if __name__ == '__main__': main()
