use variables to store values see the link to python where you will be able to download Assign a value to a variable location using (the assignment
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[PDF] Python Variable Types - Tutorialspoint
Assigning Values to Variables Python variables do not need explicit declaration to reserve memory space The declaration happens automatically when you assign a value to a variable The equal sign = is used to assign values to variables
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equals what is on the right In Python, “=“ prescribes an action, “evaluate the expression on the right and assign its value to the variable named on the left ”
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Python variables do not need explicit declaration to reserve memory space The declaration happens automatically when you assign a value to a variable Multiple
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Python allows you to assign a single value to several variables simultaneously For example: Here, an integer object is created with the value 1, and all three variables are assigned to the same memory location You can also assign multiple objects to multiple variables
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Any value is an expression ➢ Statements: Anything that does something is a statement Any assignment to a variable or function call is a statement Any value
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3 Variables A variable in Python is a name of some value 3 1 Variable assignment Form of an assignment statement: variable = expression How it's executed
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24 avr 2020 · Name your variable and add a = to assign your variable a value • To Use a while loops function the exact same way in Python as how we
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assigning a value to it 4 Scalar variables Python has two types of scalar values: numbers and strings Both types ca be assigned to a scalar variable >>> 4+5
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7 déc 2020 · A variable in Python actually holds a pointer to a class object, rather than the object itself CS303E Slideset 2: 3 Simple Python Types in Python
[PDF] COMPSCI 101 Learning Outcomes Installing Python 3
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COMPSCI 101
Principles of Programming
Lecture 2 - Variables, program execution,
calculations, print()Learning OutcomesCOMPSCI 101 - S1, 2020
Installing Python 3
https://www.cs.auckland.ac.nz/courses/compsci101s1c/resources/A Program is a Sequence of Instructions
COMPSCI 101 - S1, 2020
The Python Interpreter
COMPSCI 101 - S1, 2020
INTERPRETER
IDLE - The program editor used in
COMPSCI 101
COMPSCI 101 - S1, 2020
Programs are Deterministic
COMPSCI 101 - S1, 2020
Storing Information - Variables
COMPSCI 101 - S1, 2020
Variable Names
COMPSCI 101 - S1, 2020
x age age_of_child box1 box_2 _age age_3 age of child age-child 1st 2_boxVariable Naming Conventions
COMPSCI 101 - S1, 2020
name age course user_input age_allowed age_of_child circle_areaVariable Names Should Not Be Key Words
COMPSCI 101 - S1, 2020
and elif import raise as else in return assert except is try break finally lambda while class for nonlocal with continue from not yield def global or del if passStyle Guide
COMPSCI 101 - S1, 2020
What Kind of Information Can Our
Programs Store?
COMPSCI 101 - S1, 2020
2020 -32 1.0 -3.405 0.0
3.3333333
Note that the precision
of floating point numbers is limited.Assigning to a Variable
COMPSCI 101 - S1, 2020
result1 =54 my_age= 21 bank_balance= 2019The left hand side of the assignment operator is
always a variable.Doing Calculations
COMPSCI 101 - S1, 2020
result1 = 54 +4 result2 = 15 /5 bank_balance = 2019 *2 solution = 4 ** 3Expressions
COMPSCI 101 - S1, 2020
result1 = 54 + 4 / 5 result2 = 15 / 5 bank_balance = 2019 * 3 / 100 age = 1 + 2 + 1 + 1 result3 = 7Expressions
COMPSCI 101 - S1, 2020
result1 = 54 + 4 / 5 result2 = result1/ 10 bank_balance = 2019 * 3 / result2 age = 5 age = age+ 4 age = age * 3Printing to Standard Output
print(45.67) print(100000) print(44)COMPSCI 101 - S1, 2020
principal = 100 years = 15 print(43) print(principal) print(2 * years + 1) 43100
31
Printing a Blank Line
COMPSCI 101 - S1, 2020
principal = 100 years = 15 print(43) print() print(principal) print() print() print(2 * years + 1) 43100
31