loop not working for negative value

Hi to all , Attached please find the file in which loop is not working for the negative value. when random number is added to negative value the reduced value is not displayed as it happens for positive value....... Regards

Answer 1

[Walter Roberson]

In your code you have

        if x > 0
        x_new = x - dx
        if x_new < x
            x = x_new
        else x = x
        end
        if x < 0

The "end" you see there is for the "if x_new < x", so structurally this is like

        if x > 0
        x_new = x - dx
        ... assign something to x ...
        if x < 0

Notice that you have not ended the "if x > 0" at the time you check "if x < 0". That might be deliberate, but it also means that if the value was initially negative then the "if x > 0" would not have succeeded and so you would not have reached the "if x < 0" line.

Your code is not commented so we cannot determine what you are intending to do.