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Mathematical formula display method and mathematical formula display system based on hypertext markup language (HTML) 5 canvas

A technology of mathematical formulas and display methods, applied in the fields of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as data redundancy, and achieve the effect of efficient display

Inactive Publication Date: 2013-06-26
重庆市全媒体数字教育工程技术研究中心有限公司
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  • Application Information

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Problems solved by technology

Usually, in order to adapt to a variety of browsers, it is necessary to keep a variety of documents, which makes the data a lot of redundancy

Method used

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  • Mathematical formula display method and mathematical formula display system based on hypertext markup language (HTML) 5 canvas
  • Mathematical formula display method and mathematical formula display system based on hypertext markup language (HTML) 5 canvas
  • Mathematical formula display method and mathematical formula display system based on hypertext markup language (HTML) 5 canvas

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Embodiment Construction

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0021] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be mechanical connection or electrical connection, or two The internal communication of each element may be directly connected or indirectly connected through an intermediary. Those skilled in the art can understand the specific meanings of the above terms according to specific situations.

[0022] like figure...

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Abstract

The invention provides a mathematical formula display method and a mathematical formula display system based on hypertext markup language (HTML) 5 canvas. The mathematical formula display method comprises the steps of establishing the canvas through a canvas establishment module, establishing characters and a sign function database through a controller, establishing a mathematical formula structural control function database through the controller, writing a mathematical markup language (MathML) mathematical formula through a MathML mathematical formula module, analyzing the MathML mathematical formula through a formula processing module, drawing the MathML mathematical formula on the canvas according to the characters, contents of the sign function database and contents of the mathematical formula structural control function database, and outputting and displaying the mathematical formula. According to the mathematical formula display method and the mathematical formula display system based on the HTML 5 canvas, a simple and efficient HTML5 technique, a simple and efficient JavaScript technique and a simple and efficient MathML technique are provided through a canvas function of the HTML5 and the normalization of the MathML in mathematical formula expression, and the mathematical formula is rapidly and efficiently displayed on a webpage through analysis of the MathML mathematical formula.

Description

technical field [0001] The invention relates to the technical field of digital education, in particular to a method and system for displaying mathematical formulas based on HTML5 canvas. Background technique [0002] Mathematical formulas have become a bottleneck in the exchange of mathematical information and the development of education on the Internet due to their structural complexity. Before the appearance of MathML (Mathematical Markup Language, Mathematics Markup Language), the methods of publishing mathematical formulas on the Internet included HTML (Hypertext Markup Language, Hypertext Markup Language) built-in formula description tags, HTML+Image (Hypertext Markup Language+ Image mode) files and HTML+JavaApplet (Hypertext Markup Language+Java application program) plug-ins, etc. Although the built-in formula description tags in HTML can display mathematical formulas, complex formulas cannot be displayed normally due to the limited number and functions of built-in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/21
Inventor 韩鹏高跃王东强侯锋王佳罗茂闫东旭
Owner 重庆市全媒体数字教育工程技术研究中心有限公司
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