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A family of high order approximations of Ramanujan type for perimeter of an ellipse

Jing-Feng Tian, Zhen-Hang Yang, Ming-Hu Ha, Hong-Jie Xing

2021Revista de la Real Academia de Ciencias Exactas Físicas y Naturales Serie A Matemáticas14 citationsDOI

Topics & Concepts

EllipseRamanujan's sumPerimeterMathematicsType (biology)Approximations of πOrder (exchange)CombinatoricsFirst orderMathematical analysisGeometryApplied mathematicsGeologyFinanceEconomicsPaleontologyMathematical Inequalities and ApplicationsMathematical functions and polynomialsAdvanced Mathematical Identities
A family of high order approximations of Ramanujan type for perimeter of an ellipse | Litcius