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Comment: Re:Exact mathematical value isn't the ideal (Score 1) 238

by jbengt (#48119469) Attached to: Where Intel Processors Fail At Math (Again)

The whole problem is that you may have been reading an article written by a blogger who made some rather idiotic assumptions about the precision of the sine function.

The only incorrect assumption the blogger made was that Intel's documentation stating the precision of their implementation of the sine function was correct.

Comment: Re:example from TFA. try it (Score 1) 238

by jbengt (#48119365) Attached to: Where Intel Processors Fail At Math (Again)

But even then, it does not really make sense to discuss the precision near special values such as PI/2 because the precision of your input data will be unrealiable around that number.

In the subject case, though, the input was precise because it was a purely mathematical operation to illustrate a technique for converging towards the exact value of Pi. The misleading documentation led the author to believe that the technique should work using a compiler that uses Intel's FSIN(), but doesn't. He also found out that some compilers avoid the issue.

Comment: Re:what a difference a day makes (Score 1) 223

by jbengt (#48009151) Attached to: Nearly 2,000 Chicago Flights Canceled After Worker Sets Fire At Radar Center

The people you're talking about go through a ton of screening before being allowed onto an aircraft.

If by "a ton of screening" you mean a fingerprint check and signing a statement saying you haven't been convicted of felonies like murder, arson, & hijacking in the last ten years, then yeah, a ton of screening.

Comment: Re: Taxing the Congested Skies (Score 1) 223

by jbengt (#48009081) Attached to: Nearly 2,000 Chicago Flights Canceled After Worker Sets Fire At Radar Center
You do realize that most of the taxes and fees on your airline ticket go to things like building, maintaining, and staffing airports, traffic control centers, etc? So these are legitimate expenses of running an airline that would be built into the cost of a ticket one way or another.

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