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print()
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Show the information you want on the screen
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input()
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Change number to be number integer
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str()
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A list of number letter and symbol
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float()
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change number to be decimal number
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len()
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the length of the string
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== equal to != no equal to < less than > more than <= less than or equal to >= more than or equal to % Modulo, Find the remainder
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"" Python Intro Assignment #2 name student number """ #Ask the user for a radius of a circle user_radius = input("What is a radius of a circle?") #Convert the given radius to a floating point radius = float(user_radius) #Make a variable called pi pi = float(3.1415) #Calculate the area of the circle using exponents area = pi(radius*2) #Display the area of the circle to the user print ("The area of the circle is", area)
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user_number = input("What number do you want to count down? ") number = int(user_number) countdown_string = ' ' while number > 0: countdown_number = countdown_string + str(number) + " " number = number - 1 #print(number) print (countdown_string)
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name = "tim GIRARD" print (name.upper()) → TIM GIRARD print (name.lower()) → tim girard print (name.capitalize()) → Tim girard print (name.title()) → Tim Girard
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Variable
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Hold a value and can be change
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string
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a list of character such as number letter and symbol
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Syntax
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Grammar and structure of languge
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Integer number
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counting number
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float number
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the number in decimal
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modulo
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find the remainder
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mystr = "Hello" letter_num = 0 while letter_num < len(mystr): print (mystr[letter_num]) letter_num = letter_num + 1 H e l l o
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fruits = [] #an empty list for number in range(5): user_fruit = input("Please enter a fruit") fruits.append(user_fruit) print ("Size of fruit list is", len(fruits)) fruits.sort() for fruit in fruits: print ("Fruit: ", fruit)
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fruits = [] #an empty list for number in range(5): user_fruit = input("Please enter a fruit") fruits.append(user_fruit) print ("Size of fruit list is", len(fruits)) fruits.sort() for fruit in fruits: print ("Fruit: ", fruit)
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print(2)
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integer
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Print(2.5)
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floating point
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Print (Hello)
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string
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print(mystr)
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variable
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Rule for giving name - letter - numbers - underscore _ Valid name - _myStr - my3 - Hello_there Invalid name - 3my=”hi” -- cannot start with number - first name=”hi” - first-name - first+name
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while True: word = input("Please enter a word") index = 0 reverse = ' ' while int(index) < len(word): reverse = word[index] + (reverse) index = int(index) + 1 print ("Reverse: ", reverse)
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user_number = ' ' while user_number != ' 0 ' : user_number = input ("Enter a number to convert to binary") number = int(user_number) binary_string = ' ' while (number > 0): remainder = number%2 binary_string = str(remainder)+ binary_string number = number//2 print ("Binary string is", binary_string)
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Python Intro Assignment #2 name student number """ #Ask the user for a radius of a circle user_radius = input("What is a radius of a circle?") #Convert the given radius to a floating point radius = float(user_radius) #Make a variable called pi pi = float(3.1415) #Calculate the area of the circle using exponents area = pi(radius*2) #Display the area of the circle to the user print ("The area of the circle is", area)
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Python Intro Assignment #2 name student number """ #Ask the user for a radius of a circle user_radius = input("What is a radius of a circle?") #Convert the given radius to a floating point radius = float(user_radius) #Make a variable called pi pi = float(3.1415) #Calculate the area of the circle using exponents area = pi(radius*2) #Display the area of the circle to the user print ("The area of the circle is", area)
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Cheatography n. The art of mapping complex subjects into clear, instantly navigable reference guides.
