While only the U+2312 character is given the official name, “Arc” (which is indeed voiced as “Arc” in MathCAT), for various reasons, many commonly used WYSIWYG equation editors (e.g., legacy MathType desktop, Wiris MathType for Web, Word’s Equation Editor) do not provide a mapping to this Unicode character in their palette or provide a common keyboard autocorrect code to create it, but instead use one of two other similar looking but different Unicode characters. As a result, across the web and in various legacy digital holdings, one will instead find either U+2322 (“Frown”) or U+23DC (“Top Parenthesis”) when common geometry expressions like this one are regularly found:
<math xmlns='http://www.w3.org/1998/Math/MathML'><mrow><mover accent='true'> <mrow><mi>R</mi><mi>T</mi></mrow><mo stretchy='true'>⌢</mo></mover> </mrow></math>
The legacy MathPlayer speech rendered this example as “the Arc R T.” But MathCAT currently voices this expression as “quantity R T with frown above.”
For this reason, I suggest that all three of these similar-looking Unicode characters…U+2312, which is already correct; as well as U+2322 and U+23DC… get voiced as “Arc” in MathCAT. The braille output should, of course, reflect that construct as well.
While only the U+2312 character is given the official name, “Arc” (which is indeed voiced as “Arc” in MathCAT), for various reasons, many commonly used WYSIWYG equation editors (e.g., legacy MathType desktop, Wiris MathType for Web, Word’s Equation Editor) do not provide a mapping to this Unicode character in their palette or provide a common keyboard autocorrect code to create it, but instead use one of two other similar looking but different Unicode characters. As a result, across the web and in various legacy digital holdings, one will instead find either U+2322 (“Frown”) or U+23DC (“Top Parenthesis”) when common geometry expressions like this one are regularly found:
<math xmlns='http://www.w3.org/1998/Math/MathML'><mrow><mover accent='true'> <mrow><mi>R</mi><mi>T</mi></mrow><mo stretchy='true'>⌢</mo></mover> </mrow></math>The legacy MathPlayer speech rendered this example as “the Arc R T.” But MathCAT currently voices this expression as “quantity R T with frown above.”
For this reason, I suggest that all three of these similar-looking Unicode characters…U+2312, which is already correct; as well as U+2322 and U+23DC… get voiced as “Arc” in MathCAT. The braille output should, of course, reflect that construct as well.