Use delimiter(start delimiter '(' and end delimiter ')', LaTeX block) to determine the area between the text content and the mathematical content, that is, the data in LaTeX block is mathematical content (LaTeX), and the data outside LaTeX block is text content. Writing mixed content (text content and mathematical content): write mixed content 'Numpad 1~9': Reading the math content into serialized text using NVDA Reviewing Text.'Ctrl+c': Copy object MathML source code.'Home': Move back to the top.(Entire math content).'Right Arrow': Move to the next math content.'Left Arrow': Move to the previous math content.'Up Arrow': Zoom out to a larger subpartthe of the math content.'Down Arrow': Zoom in on a smaller subpart of the math content.For example, there are two score items, and moving between them will enroll the item as the denominator or numerator

Analyze the mathematical meaning of the content item: When navigating and browsing, it will prompt the meaning of the content under its upper content.

Analyze the overall mathematical meaning of the content: analyze the structure of MathML, and when it meets a specific rule, read it aloud in the mathematical meaning of the rule.

Text review: Press the numeric keyboard 1-9 during navigation to read the mathematical content of the serialized text word by word and line by line Also, you can partially explore the subparts in expression and move or zoom the content between the subpart.

interaction: Into math content to navigate and browse.

Pressing 'Space' in math content to open 'Access8Math interaction window' which contains 'interactive' and 'copy' button. It means you can browse part of the sub-content in the math content and move between sub-contents or zoom the size of the sub-content

Interaction: Press space or enter on the MathML math object to enter navigation interactive mode.

Read math content written in MathML in web browser(Mozilla Firefox, Microsoft Internet Explorer and Google Chrome) or read Microsoft Word math content written in MathType.

The hierarchical relationship with the item. This function can better understand the structure and items of long math content. Navigation interactive mode can segment a math content into smaller partial fragments for speaking, and select the read fragment and method through a series of keyboard key operations. Although the original NVDA already equipped this feature by applying MathPlayer, some functions still needed to be improved, such as not providing or incomplete specific language translation, not providing specific language navigation and browsing and many more. This NVDA addon provides the function of reading math content.

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