Vitamins may reduce the symptoms of rosacea. Photo Credit Kathleen Brennan/Brand X Pictures/Getty Images. Rosacea is a chronic condition characterized by redness and inflammation of the skin around the nose, cheeks and forehead. The exact cause of rosacea is unknown and the triggers can vary from case to case. According to Rosacea.org, the most common triggers include sun exposure, emotional stress and heat.
A fraction (from Latin fractus, broken) represents a part of a whole or, more generally, any number of equal parts. When spoken in everyday English, a fraction describes how many parts of a certain size there are, for example, one-half, eight-fifths, three-quarters.
In math, value can either refer to the result of a calculation or a variable or constant. Mean value is the average of a set of numbers. You can find this by adding the numbers in a set and dividing it by the number of numbers in that set. The value of a function at a certain point refers to the value of a function if you plug in the values given for the variables in the function. Value can also refer to worth of an object in math.