Pseudocode

​Pseudocode

:D

Open Ended

What is pseudocode?

​Pseudocode

Pseudocode is fake code. It makes sense, but you can't run it through a computer.

:D

​Basic Operators

Pseudocode

​Addition: 1 + 2 = 3

Subtraction: 4 - 3 = 1

Multiplication: 1 * 2 = 2

Division: 1 / 2 = 0.5

Modulus: 9 % 5​ = 4

Exponentiation: 2 ^ 3 = 8​

​

Arithmetic I guess

Real Code​ (Python)

Addition: 1 + 2 = 3

Subtraction: 4 - 3 = 1

Multiplication: 1 * 2 = 2

Division: 1 / 2 = 0.5

Modulus: 9 % 5​ = 4

Exponentiation: 2 ^ 3 = 8​

​Decision Operators

Pseudocode

​< (2 < 3 is True)

> (5 > 2 is True)

== (1 == 2 is False)

<= (1 <= 1 is True)

>= (1 >= 1 is True)

!=  (1 != 2 is True)

​

Deciding

Real Code​ (Python)

< (2 < 3 is True)

> (5 > 2 is True)

== (1 == 2 is False)

<= (1 <= 1 is True)

>= (1 >= 1 is True)

!=  (1 != 2 is True)

​Boolean Operators

Pseudocode

​! (!True = False)

&& (True && False = False)

|| (True && False = True)​

​

The left side in C++​ and Java

The right side works in Python​

You may see both sides in pseudocode though :D

​

Boolean fun!

Real Code​ (Python)

not (not True = False)

and (True and False = False)

or (True or False = True)​

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​Precedence

These operators follow an order (like PEMDAS, with more operators)

​

!, ^ or ↑, *, /, %, +, -, >, <, >=, <=, !=, ==, &&, and ||

​

Multiplication and division can occur in any order (the same goes for addition and subtraction)​

​

Precendence

Check the weather

Otherwise

Bring a hat

​If it is sunny

​If/Else

The idea behind decision making

​If/Else

​if the weather is sunny then

bring a hat

else

​ bring nothing

end if​

If/Else in pseudocode

if (condition){

do stuff​

}​ else {

do stuff​

}

​

C++/Java

if condition:

do stuff

else:

do stuff​

​Python

​If/Else

How If/Else looks in code

Multiple Choice

• -1

• 0

• 1

• $$\Phi$$