Save guides, add subjects and pick up where you left off with your BBC account. Iteration is the process of repeating steps. For example ... is implemented in programming using FOR and WHILE ...

Save guides, add subjects and pick up where you left off with your BBC account. Iteration close iterationThe repetition of a block of statements within a computer program. is the third programming ...

Save guides, add subjects and pick up where you left off with your BBC account. We can place the instructions we want to repeat inside a loop. You may want to repeat the instruction for a set ...

FOR x ← 1 TO 10 FOR y ← 1 TO 10 result ← y * x OUTPUT y + " * " + x + " = " + result ENDFOR ENDFOR For every iteration of x ... and paths for a program to follow. It allows for complex ...

In the following example it is necessary to use the ELSE command because the statement has two possible selections/outcomes. Iteration takes place when the values held within an array are used ...

Save guides, add subjects and pick up where you left off with your BBC account. Sometimes a programmer needs to store a lot of related data. For example ... Suppose the program needed to record ...

Condition-controlled loops have a condition that is tested at the start of the iteration to determine ... also be used to ensure a program does run forever, for example the program that controls ...

Sometimes when using a condition-controlled (WHILE) loop there may be a situation where the code contained within the iteration is never run. This is because the condition is tested at the start ...

Allowing programs to make decisions is an important part of programming. ‘If statements’ are used to let a program select an action depending upon the value of variables held in the program.

For example, a procedure to output even numbers between 0 and a number entered by a user: def countEven(n): #define a procedure called countEven for i in range (0, n): #an iteration (loop ...

Save guides, add subjects and pick up where you left off with your BBC ... Popular programming paradigms include imperative, procedural and Object Orientated Programming (OOP). In the example ...