Functionprint() | displays information that you want to show on the screen | int() | Change number to be number integer | input() | Gain information from user | str() | A list of number, letter and symbols | len() | The length of the string | # | Comment, no effect |
Multiplication and Exponentsstring * string | Crash! | string * number | combine that string | number * number | multiply (Math) | string ** string | Crash! | number ** number | Exponent(Math) | string ** number | Crash! |
Exampleprint (2.5) - Float
print (2) - Integer
print ("Hello") - string
print (mystr) - variable
print (mystr,"Hi,2,1,0) - commas
mystr = "noobs"
mystr - name
"noobs" - can be change
print (int(1.5)) - 1
print (int("2")) - 2
Countdown Machineuser_number = input("What number do you want to countdown?")
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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Input loopwhile True:
user_input = int(input("what is your number:"))
integer = user_input*10
print (integer)
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recieves input loop then convert to integer and * 10
Decision Making/Conditional statementif 3 < 2: #if statement must compare 2 booleans
print ('3 is less than 2')
elif 4 < 2: #can have 0 or more elif statements.
print ('4 is less than 2')
elif 5 < 2:
print ('5 is less than 2')
else: #can have 0 or 1 else statement at the end
print ('none of above are true')
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| | Vocabularyvariable | something that can be change | string | a list of characters such as number,letter and symbols | Integer number | Whole number/counting number | Float number | The number in decimal | Syntax | Grammar/Structure of language | Modulo | Find the remainder | Boolean | True/False |
Additionstring + string | combine number | string +number | CRASH! | number + number | Addition (Math) |
Naming ConventionRule for giving name
- letter
- numbers
- underscore _
Valid name
- Allahu_akbar
- _gg3
- _print
Invalid Name
- 3my = "hi" -- cannot start with number
- first name = "hi"
-first-name
Math Operationdef calc(num1, num2, operation):
if operation == "sum":
return sum(num1, num2)
elif operation == "product":
return product(num1, num2)
elif operation == "diff":
return diff(num1, num2)
elif operation == "div":
return div(num1, num2)
def sum(a, b):
return (a+b)
def product(a, b):
return (a*b)
def diff(a, b):
return (a-b)
def div(a, b):
if b!=0:
return (a//b)
else:
print ("error")
print (calc(10, 0, "div"))
print(calc(1,2,"sum"))
print(calc(4,2,"diff"))
print(calc(9,3,"div"))
print(calc(2,12,"product"))
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for loop each itemforlist = ['hi', 'hello', 'goodbye']
for gg in forlist:
print(gg)
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| | Math== | equal to | != | no equal to | < | less than | > | more than | <= | less than or equal to | >= | more than or equal to | % | Modulo, Give remainder when dividing | and | or | not | * | multiply | / | divide with answer as a float 5/2 = 2.5 | // | divide with answer as an interger 5//2 = 2 | ** | exponent 2**3 = 8 |
True or anything is always True
False and anything is always False
Convert to binaryuser_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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Reversewhile 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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Making list & random itemimport random
intlist = [1, 2, 3, 4, 5]
random_int = random.choice(intlist)
print(intlist, random_int)
fplist = [1.1, 1.2, 1.3, 1.4]
random_fp = random.choice(fplist)
print (fplist, random_fp)
strlist = ["Allo", "Stego", "Carno", "T-rex"]
random_str = random.choice(strlist)
print(strlist, random_str)
mylist = ["Yasashii", 1.3, 2]
random_item = random.choice(mylist)
print(mylist, random_item)
myvar1 = 1
myvar2 = 2
myvar3 = 3
varlist = [myvar1, myvar2, myvar3]
random_var = random.choice(varlist)
print(varlist, random_var)
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While Loop each itemwlist = [2, 4, 5, 6, 7, 8]
gg = 0
while gg < len(wlist):
print (wlist[gg])
gg = gg + 1
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