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4.173075996388649989089E1
Posted:
Sep 27, 2011 1:49 PM


Hi math wizards.
In the code of the sqrt function, Stephen Moshier writes:
/* approximate square root of number between 0.5 and 1 * relative error of approximation = 7.47e3 */ x = 4.173075996388649989089E1 + 5.9016206709064458299663E1 * z;
(x = 0.5 <= x <= 1)
OK. But anyone has here an idea of how those numbers are calculated?
Thanks in advance for any hints.



