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Re^6: [OT] Statistics question.

by BillKSmith (Deacon)
on Jan 31, 2013 at 21:23 UTC ( #1016395=note: print w/ replies, xml ) Need Help??


in reply to Re^5: [OT] Statistics question.
in thread [OT] Statistics question.

It sounds like my method will not help you in this case. I have used it in solving triangles. I want $b=sqrt($c**2-$a**2). The mathematically equivalent statement $b=sqrt(($c+$a)*($c-$a)) allocates almost twice as many bits for the subtraction. Not knowing this simple trick added weeks of effort to my first real FORTRAN program.

Bill


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