The default at the beginning of a string is uppercase. The default at the beginning of a string is to write across the frame. Each character has a left edge center point, a right edge center point, a bottom edge center point, and a top edge center point, as defined by information in the database of the font from which it came. Similarly, when characters are being written down the frame, each character is placed so that its top edge center point is coincident with the bottom edge center point of the previous character. S or S n selects superscript level.
N causes a return to normal level.
If S or B is followed by a positive integer n , then n characters will be drawn as specified above, after which size, case and position will be reset to that of the base character. The function code E terminates the current level of subscripting or superscripting, restoring the size, case, and position to that of the base character. The function code N terminates the current level of subscripting or superscripting, restoring the size and case to that of the base character, but the position as required to continue writing at the level of the base character without writing over the subscripts or superscripts. Up to five levels are allowed. N returns to normal level in such a way that the character Y does not overwrite the 2 and the 3.