An iterative method for computing π by argument reduction of the tangent function
arxiv(2023)
摘要
In this work, we develop a new iterative method for computing digits of π
by argument reduction of the tangent function. This method combines a modified
version of the iterative formula for π with squared convergence that we
found in our previous work and a leading arctangent term from the Machin-like
formula. The computational test we performed shows that algorithmic
implementation can provide more than 17 digits of π per increment.
Mathematica codes, showing the convergence rate in computing digits of π,
are presented.
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