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A formula editor is a computer program that is used to typeset mathematical formulas and mathematical expressions. Formula editors typically serve two purposes: They allow word processing and publication of technical content either for print publication, or to generate raster images for web pages or screen presentations.
The following five dash styles are currently in use in Wikipedia: Tight (unspaced) em dashes—like this. Spaced em dashes — like this. Spaced en dashes – like this. (Note: an unspaced en dash is properly used to indicate a range of numbers; unspaced en dashes should not be used for the parenthetical or colon-type uses, as discussed above ...
The correct encoding of the minus sign "−" is different from all varieties of hyphen "-‐‑", [4] as well as from en-dash "–". To really get a minus sign, use the "minus" character "−" (reachable via selecting "Math and logic" in the drop-down list below the edit box or using {{subst:minus}}) or use the "−" entity.
If you’ve ever found yourself confused about the difference between a dash and a hyphen, and when to use a hyphen, you’re far from alone. Now that you’ve got that rule straightened out ...
Pd, dash Common — EM DASH U+2014: Pd, dash Common ― HORIZONTAL BAR U+2015: Pd, dash Common ⸗ DOUBLE OBLIQUE HYPHEN U+2E17: Pd, dash Common ⸚ HYPHEN WITH DIAERESIS U+2E1A: Pd, dash Common ⸺ TWO-EM DASH U+2E3A: Pd, dash Common ⸻ THREE-EM DASH U+2E3B: Pd, dash Common ⹀ DOUBLE HYPHEN U+2E40: Pd, dash Common 〜 WAVE DASH U+301C: Pd ...
This screenshot shows the formula E = mc 2 being edited using VisualEditor. The window is opened by typing "<math>" in VisualEditor. The window is opened by typing "<math>" in VisualEditor. The visual editor shows a button that allows to choose one of three offered modes to display a formula.
To insert a dash or minus sign, use the toolbar below the edit box. Click where you want the character to be inserted, select "Insert" from the pull-down menu, and then: To insert an en dash (–), click on the first character (the shorter dash). To insert an em dash (—), click on the second character (the longer dash).
It is commonplace to use alphabets, fonts and typefaces to group symbols by type. The use of specific Latin and Greek letters as symbols for denoting mathematical objects is not described in this article. For such uses, see Variable § Conventional variable names and List of mathematical constants.