A text string is a series of characters that is interpreted as a unit. Unlike characters that make up an expression, the characters in a text string don’t usually appear in italics and aren’t multiplied together.
Text strings have no mathematical meaning in FrameMaker. For example, evaluation commands can evaluate the function tan but not the string “tan”.
On the Symbols page of the Equations panel, click Start String. Two double quotation marks ( " " ) appear. You can also type an apostrophe ( ' ) or a double quotation mark (") to start the string.
Type the text of the string. The quotation marks disappear, and the text appears as you type. To insert a straight apostrophe or straight double quotation mark as part of the string, hold down Control while pressing the key.
Click End String on the Symbols page or press Return.
Note: FrameMaker also supports Unicode characters, so you can also add these characters within the strings. To support this functionality,UseGlyphRendererForEquationsproperty has been added to the maker.ini file. To enable this feature, set the flag as ON. The default value of this flag is OFF. To know more see, Adobe FrameMaker INI Reference.Once you have entered your equation, ensure that the equation fits in the equation box.