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View Full Version : Help! About F3m


bird of wonder
Apr 28, 2008, 09:27 PM
Is this equation:
(D x s)*0.9 -0.5 <= d <= (D x s)*1.1 + 0.5
the same as:
0.9Ds-0.5≤d≤1.1Ds+0.5
I am confused, would you tell me please. Thanks!