About me I've been a computer programmer since I first started typing in program listings on a Commodore Vic 20 when I was about 8. My hobbies include electronics, CNC manufacturing, photography, beer and winemaking.
I live with my wife and lots of left-over parts from unfinished projects in Lincoln, Nebraska, USA.]
Blog
7 March 2012, 15:42 UTCCancellation error
I was recently reminded of the importance of choosing numeric algorithms that
don't behave catastrophically for certain inputs. One example is the
calculation of 1-cos(θ) for small θ. In this case, cos(θ) is very close to 1,
leading to a large
cancellation error in the subtraction step.
Cancellation error
I was recently reminded of the importance of choosing numeric algorithms that don't behave catastrophically for certain inputs. One example is the calculation of 1-cos(θ) for small θ. In this case, cos(θ) is very close to 1, leading to a large cancellation error in the subtraction step.
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