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**Loops** are required to execute a piece of code multiple times. MATLAB allows two different types of loops to be executed, which are explained in this shot:

1. While loop
2. For loop
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## While loop

The syntax of this loop is:



The **`while loop`** executes as long as the `expression` remains `True`. As the 'expression' becomes `False`, the loop finishes. The keyword `end` specifies the ending of `while loop`. 
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## Example program

In the code below, the `while loop` runs five times (from $0$ to $4$) and ends as soon as the 'count' equals $5$.

count = 0;

while(count < 5)
   fprintf('The count is %d\n', count);
   count = count + 1;
end

octave

## For loop

For loop can be defined in the following two ways:

### Syntax type 1

The **`for loop`** starts its execution from `startCount` and ends at `endCount`. 

---
> Note: Both the counts are inclusive in this case. 
---

Similar to `while loop`, the keyword `end` specifies the end of `for loop`.

// increment from start to end
for i = startCount:endCount
  code 
end

### Syntax type 2

For `for loop` with `step` value, the start counter increments is based on the 'step' value till the end counter.

// increment or decrement from start to end based on
// step value
for i = startCount:step:endCount
  code 
end

## Code implementation
The syntaxes mentioned above are implemented as follows:

### Implementation of syntax 1

The following example shows that the print statement is executed five times from $1$ to $5$, inclusive. As the count reaches $5$, the `for loop` ends.

for count = 1:5 
   fprintf('The value of count is %d\n', count);
end

### Implementation of syntax 2

In the second example, the `for loop` increments by `step` value which is $2$, and reaches the end counter, which is $12$.

for count = 2:2:12 
   fprintf('The value of count is %d\n', count);
end

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## Conclusion

The main difference between the `for` and `while loop` in MATLAB is that `for loop` does not require the counter to be incremented manually, but the `while loop` does.

oct.tar.gz

What are the types of loops in MATLAB?

MATLAB supports while and for loops, differing mainly in manual counter increment.