Random command! Returns the sum of the elements of a matrix. The cumSum( command gets the cumulative sum of each column in the matrix, adding the value of the previous element to the next element, and repeating this for each consecutive element in the column. When the cumSum( command is finished, the last element in each column will contain the sum of that column.
AIG: What does this US giant do? American International Group (AIG) is one of the world's biggest insurance firms, but it has fallen spectacularly from grace in recent months. Although it provides services to millions of people across the world, it recently announced the biggest quarterly loss in corporate history.
How do allergy shots work? Allergy shots help relieve allergy symptoms by changing the way your body reacts to the allergen that causes your allergy. When you get shots of the allergen, your body starts making antibodies that fight against the allergen. These antibodies help block the effects of the allergen the next time you have contact with it. Because the antibodies block the way your body reacts to the allergen, your allergy symptoms become less severe.