please help me identufy this.. i write the program but i dont know what this program do.. this is the command.. and output..

this is the command

x= [-2 4 7 -9 3 11 7 5 7 ]
[i j ]= size (x)
count = 0 ;
for a = 1 : j
    if x (1,a)==7
        count=count+1 ;
    end
end
count

and this is the output

x =

      -2     4     7    -9     3    11     7     5     7

i =

       1

j =

       9

count =

       3

x =

      -2     4     7    -9     3    11     7     5     7

i =

       1

j =

       9

count =

       3

please help me to identify this program.. thanks

[Swarooph]

It is just counting the number of '7's in the first row of the variable 'x'. What would you LIKE it to do?

[Sean de Wolski]

So you wrote it but you don't know what it does? That is a very odd work flow from an engineering standpoint.

Answer 1

[Dr. Seis]

You are defining an array that is 1 row x 9 columns with values ranging from -9 to 11. You then calculate the "size" of the array and the number of rows are assigned to "i" and the number of columns are assigned to "j". You then initialize "count" to 0 and then loop through all the elements of your array "x" and every time an element in "x" is equal to 7, you increment "count" by 1.

In the future, go to your Help Navigation (little blue question mark) and search for each function within a piece of code you do not understand.

[nian]

thanks for ur help...!!