Why MATLAB showing two different type of value of b?

>> a  
a =  
     1     4     7     9    22

>> for(b = a); b; end
>> b  
b =  
    22
>> for (b = a)
b
end

b =  
     1   
b =  
     4   
b =  
     7   
b =  
     9    
b =  
    22

[Stephen23]

This will be useful to study:

http://www.mathworks.com/help/matlab/getting-started-with-matlab.html

Answer 1

[Image Analyst]

In the first case, you have a semicolon at the end of the line which means it does not echo the current value of b to the command line. After the loop you put b without a semicolon, so it will give the current value of b, which is 22.

In the second case you left off the semicolon inside the loop so it will echo/print b to the command window on every iteration. That's why you see all of them instead of just the last value like you did in the first case.

In both cases, b took on exactly the same values.