Alternative transcript:

mixed up between = and == operators, one will assign a value, and one will check if the value is true Function Addition Arithmetic Operators Arithmetic operators take two values and perform a maths function on them Subtraction Multiplication Division Exponentiation Quotient Remainder Operator + * ^ DIV MOD or % These operators can work on integers or real data values, or a combination of the two. Computers will always use BIDMAS, so make sure to use operators in the right order, or use brackets so it does the right program. Boolean Operators Boolean operators are used in 2.4.1 Boolean logic and there are three we need to know: Boolean operator AND OR NOT && || For example: ! Example that returns true 3<5 AND 2>1 1>8 OR 2 ==2 NOT (5>8 You can combine Boolean operators, but you must use brackets so the computer knows what part to do first Program Flow Sequence Sequence -> executing each instruction once in the order its given in a program name = input "What is your name? >>>" print("Hello + "+name+" , my name is Andy") This program is executed in order Selection Sometimes, you don't want to execute all your code at once. You may need the program to select what top execute at different times. We use conditional statements to test a variable against another and see what to execute. For example, this flow chart shows selection: Start Print "Access granted." True if x == "GO" else: Input x X == "GO"? Stop False x = input "Please input the special word >>>" "Access denied." print "Correct, access granted" print "Incorrect, access denied" Print In this example, there are two bits of code the program could print, depending on user input. You can nest if statements to make more complex programs and more outputs. Or you can use else if statements to make more checks on a condition. For loops For loops will repeat code inside them for a fixed number of times for k = 1 to 100: # this will repeat 100 times print k next k Or you can use them to iterate over lists, like in python list = ["Mouse", "Keyboard", "Monitor" for item in list. print item # This will print each item in the list While Loops While Loops continue until an condition is met Is the condition true? Yes Part of the program to repeat No