How do we type the mathematical symbols through key board?
You used to be able to do it using the Alt key and a combination of numbers on the numeric keypad and you needed a copy of the ascii character codes, but most laptops do not have the numeric keypads anymore. The easiest way to access those characters is to run the “character map” program. You can find that by clicking on the Start Menu/All Programs/Accessories/System Tools/character map. When the program loads and you don’t see the characters that you want you may just need to change the font by clicking the scroll arrow and selecting the proper font. Some of these signs may be in the font that you are currently using but the most common special character fonts are; “Symbol”, “Wingdings”, “Wingdings 2”, and “Wingdings 3” for example.
