व्हाट इज द रूल ऑफ प्लस माइनस इन मल्टीप्लाई फॉर्म एंड इन प्लस माइनस फॉर्म
Answers
Answer:
In Unicode: U+00B1 ± PLUS-MINUS SIGN
In ISO 8859-1, -7, -8, -9, -13, -15, and -16, the plus–minus symbol is code 0xB1hex. This location was copied to Unicode.
The symbol also has a HTML entity representations of ± and ±.
The rarer minus–plus sign is not generally found in legacy encodings, but is available in Unicode as U+2213 ∓ MINUS-OR-PLUS SIGN so can be used in HTML using ∓ or ∓.
In TeX 'plus-or-minus' and 'minus-or-plus' symbols are denoted \pm and \mp, respectively.
Although these characters may also be produced using underlining or overlining + symbol ( + or + ), this is deprecated because the formatting may stripped at a later date, changing the meaning. It also makes the meaning less accessible to blind users with screen readers.
Typing Edit
Windows: Alt+241 or Alt+0177 (numbers typed on the numeric keypad).
Macintosh: ⌥ Option+⇧ Shift+= (equal sign on the non-numeric keypad).
Unix-like systems: Compose,+,- or ⇧ Shift+Ctrl+u B1space (second works on Chromebook)
AutoCAD shortcut string