# Horizontal asymptotes online calculator

*Horizontal asymptote* of the function
f(x)
called straight line parallel to x axis that is closely appoached by
a plane curve. The distance between plane curve and this straight line decreases to zero as the x tends to
infinity. The horizontal asymptote equation has the form:

y
= y_{0},
where y_{0} - some constant (finity number)

To find horizontal asymptote of the function
f(x),
one need to find
y_{0}.
To find the value of y_{0}
one need to calculate the limits

and

If the value of both (or one) of the limits equal to finity number
y_{0},
then

y = y_{0} - horizontal asymptote of the function
f(x).

To calculate horizontal asymptote of your function, you can use our free of charge online calculator, based on the Wolfram Aplha system.

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## Choose options to find horizontal asymptotes of the function':

Function variable