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The convergence of a geometric series can be described depending on the value of a common ratio, see § Convergence of the series and its proof. Grandi's series is an example of a divergent series that can be expressed as 1 − 1 + 1 − 1 + ⋯ {\displaystyle 1-1+1-1+\cdots } , where the initial term is 1 {\displaystyle 1} and the common ratio ...
The staggered geometric progression () =,,,,, …, / ⌊ ⌋, …, using the floor function ⌊ ⌋ that gives the largest integer that is less than or equal to , converges R-linearly to 0 with rate 1/2, but it does not converge Q-linearly; see the second plot of the figure below. The defining Q-linear convergence limits do not exist for this ...
A sequence that does not converge is said to be divergent. [3] ... (terminus) of a geometric series in his work Opus Geometricum (1647): ...
The ratio test and the root test are both based on comparison with a geometric series, and as such they work in similar situations. In fact, if the ratio test works (meaning that the limit exists and is not equal to 1) then so does the root test; the converse, however, is not true.
An example of a convergent series is the geometric series ... any series of real numbers or complex numbers that converges but does not converge absolutely is ...
In mathematics, convergence tests are methods of testing for the convergence, conditional convergence, ... is a geometric series with ratio ...
The sequences converge to a common limit, and the geometric mean is preserved: ... The fundamental property of the geometric mean, which does not hold for any other ...
A sequence of functions () converges uniformly to when for arbitrary small there is an index such that the graph of is in the -tube around f whenever . The limit of a sequence of continuous functions does not have to be continuous: the sequence of functions () = (marked in green and blue) converges pointwise over the entire domain, but the limit function is discontinuous (marked in red).