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Method and apparatus for modifying formula operator

An operator and formula technology, applied in the field of modifying formula operators, can solve problems such as not supporting the modification of formula operators, achieve the effect of improving user experience and typesetting efficiency, reducing complexity and time

Inactive Publication Date: 2009-05-20
PEKING UNIV FOUNDER GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Embodiments of the present invention provide a method and device for modifying formula operators to solve the problem in the prior art that the modification of formula operators is not supported in formula typesetting

Method used

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  • Method and apparatus for modifying formula operator
  • Method and apparatus for modifying formula operator

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Embodiment Construction

[0027] In the embodiment of the present invention, according to the corresponding relationship between the formula operator and the formula operator set, the formula operator set corresponding to the first formula operator is determined, and after the user selects the second formula operator from the formula operator set, the first formula operator The operator is replaced with a second formula operator, and since the modification of the formula operator is supported, the complexity and time of modifying the formula operator are reduced.

[0028] Wherein, the formula in the embodiment of the present invention is a mathematical-physical formula with a nestable tree structure.

[0029] Specifically, the mathematical, physical and chemical formulas are formatted into a tree, that is, the mathematical, physical and chemical formulas are expressed in a tree structure. The basic element of the tree structure is "area". An area refers to an object that can contain certain content and...

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Abstract

The invention relates to the field of typesetting technology, in particular to a method for modifying a formula operator and a device therefor, which is used to solve the problem that the current formula typesetting of the prior art does not support the modification of the formula operator. The method of the embodiment comprises the following steps: a first formula operator which needs to be modified is determined; according to the corresponding relation between a pre-established formula operator and a formula operator set, the formula operator set corresponding to the first formula operator is determined and the determined formula operator set is displayed; and after a user selects a second formula operator from the determined formula operator set, the first formula operator is replaced by the second formula operator. The method of the embodiment can support the modification of the formula operator in the typesetting process, thereby reducing the complexity and time for modifying the formula operator and improving the user experience and the typesetting efficiency.

Description

technical field [0001] The invention relates to the technical field of typesetting, in particular to a method and device for modifying formula operators. Background technique [0002] In the field of typesetting technology, the interactive operation of formulas is a very important and practical technology. A good interactive design can not only enhance the typesetting effect of formulas, but also speed up typesetting efficiency and reduce typesetting difficulty and workload. [0003] The current typesetting software does not support the modification of formula operators when typesetting formulas. If the user wants to modify the formula operator, such as replacing the formula operator, the user needs to modify the data attached to the formula operation together. [0004] For example, if the user wants to replace a straight fraction line with a slanted fraction line, the formula must be deleted (that is, the operator and the data it carries must be deleted together), and then...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T11/60G06F17/24
Inventor 赵志刚陈宇
Owner PEKING UNIV FOUNDER GRP CO LTD
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