Function calculator

Enter the function (real of one variable x). How to type a function?
f (x) =

:
• The value (or limit) of f (x), for x = . (Type infinity for .)
• .
• The Taylor expansion of f, in the neighborhood of , of order .
• , where a =   and b = .
• The curve of f , in the interval from to .
Optionally, the bound of f (x) : from to .
• Search for roots and/or extrema of f (x), for x between and .
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