| 摘要 |
PROBLEM TO BE SOLVED: To add parentheses desired by a user to a described mathematical expression term by preparing three kinds of a composing processing for adding parentheses, and switching a mode by the user. SOLUTION: An editing means A constituted of a composition controlling part 503, relative coordinate calculating part 506, absolute coordinate calculating part 505, and syntax analyzing part 504 have three modes, that is, a parenthesis priority mode, reference position priority mode, and size priority mode at the time of adding parentheses to a fractional expression. The layout of the character string of a character string storing part 502 is decided by referring to the format information of a format information storing part 508. In the parenthesis priority, the central position of the parentheses is made coincident with the position of a fractional line, and parentheses matched with the height of the larger term among the denominator term and numerator term of the fractional expression are generated. In the reference position priority mode, the reference position of the parentheses is made coincident with the position of the fractional line, and the upper half part of the parentheses is matched with the height of the numerator term, and the lower half part of the parentheses is matched with the height of the denominator term. In the size mode, parentheses matched with the height of the whole fraction are generated. |
