Read More
Date: 21-12-2019
726
Date: 26-4-2020
966
Date: 26-8-2020
769
|
The approximation for pi given by
(1) |
|||
(2) |
|||
(3) |
In the above figure, let , and construct the circle centered at of radius 1. This intersects at point . Now construct the circle about with radius 1. The circles and intersect in , and the line intersects the perpendicular to through in the point . Now construct the point to be a distance 3 along . The line segment is then of length
(4) |
This construction was given by the Polish Jesuit priest Kochansky (Steinhaus 1999).
REFERENCES:
Bold, B. Famous Problems of Geometry and How to Solve Them. New York: Dover, p. 44, 1982.
Kochansky, A. A. "Observationes Cyclometricae ad facilitandam Praxin accomodatae." Acta Eruditorum 4, 394-398, 1685.
Steinhaus, H. Mathematical Snapshots, 3rd ed. New York: Dover, p. 143, 1999.
|
|
مخاطر خفية لمكون شائع في مشروبات الطاقة والمكملات الغذائية
|
|
|
|
|
"آبل" تشغّل نظامها الجديد للذكاء الاصطناعي على أجهزتها
|
|
|
|
|
تستخدم لأول مرة... مستشفى الإمام زين العابدين (ع) التابع للعتبة الحسينية يعتمد تقنيات حديثة في تثبيت الكسور المعقدة
|
|
|