Root of a Function
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High Quality Content by WIKIPEDIA articles! In mathematics, a root (or a zero) of a real-, complex- or generally vector-valued function is a member x of the domain of such that (x) vanishes at x, that is, x text{ such that } f(x) = 0,. In other words, a "root" of a function is a value for x that produces a result of zero ("0"). For example, consider the function defined by the formula f(x)=x^2-6x+9 ,. has a root at 3 because f(3) = 3^2 - 6(3) + 9 = 0. If the function is mapping from real numbers to real numbers, its zeros are the points where its graph meets the x-axis. An alternative name for the root in this context is the x-intercept.…mehr

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High Quality Content by WIKIPEDIA articles! In mathematics, a root (or a zero) of a real-, complex- or generally vector-valued function is a member x of the domain of such that (x) vanishes at x, that is, x text{ such that } f(x) = 0,. In other words, a "root" of a function is a value for x that produces a result of zero ("0"). For example, consider the function defined by the formula f(x)=x^2-6x+9 ,. has a root at 3 because f(3) = 3^2 - 6(3) + 9 = 0. If the function is mapping from real numbers to real numbers, its zeros are the points where its graph meets the x-axis. An alternative name for the root in this context is the x-intercept.