Resultats globals: 2 registres trobats en 0.04 segons.
Articles, 2 registres trobats
Articles 2 registres trobats  
1.
24 p, 349.0 KB Three essays on Machin's type formulas / Gasull, Armengol (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Luca, Florian (Universidad Nacional Autónoma de México. Centro de Ciencias Matemáticas) ; Varona, Juan L. (Universidad de La Rioja. Departamento de Matemáticas y Computación)
We study three questions related to Machin's type formulas. The first one gives all two terms Machin formulas where both arctangent functions are evaluated 2-integers, that is values of the form b/2a for some integers a and b. [...]
2023 - 10.1016/j.indag.2023.07.002
Indagationes Mathematicae, Vol. 34, Issue 6 (November 2023) , p. 1373-1396  
2.
10 p, 1.9 MB Chronostratigraphic Subdivision of the Cambrian of China / Peng, S. (Chinese Academy of Sciences. Nanjing Institute of Geology and Palaeontology)
The chronostratigraphic framework for the Cambrian of South China is reviewed. Currently four series and nine stages are recognized. The Cambrian of South China is subdivided into one pre-trilobite-bearing series, the Diandongian Series, and three trilobite-dominated series, the Qiandongian, Wulingian, and Hunanian. [...]
2003 - 10.1344/105.000001600
Geologica acta, Vol. 1, Núm. 1 (2003) , p. 135-144  

Us interessa rebre alertes sobre nous resultats d'aquesta cerca?
Definiu una alerta personal via correu electrònic o subscribiu-vos al canal RSS.