Whether the identifier denotes an object of user-defined type or a type derived from a user-defined type. Whether the identifier denotes a function or a type derived from a function. The number of arguments to a function. The dollar sign is also a valid identifier in Visual C++.
Known to ancient Egyptians, watercolor painting is one of the oldest art forms. Artists from medieval times used watercolors for the illumination of parchment papers, but during the 16th, 17th and 18th centuries, watercolors were restricted to miniature paintings on card, ivory, parchment or porcelain.
1 For watercolor painting, the best brushes are sable or squirrel, with a round tip. 2  The best paint brushes for acrylic painting are synthetic or synthetic mix with a flat tip.  For oil painting, the best options to use are synthetic mix and hog with a filbert tip.