[WP34S] DEG and RAD  diffs

06072014, 03:38 AM
Post: #32




RE: [WP34S] DEG and RAD  diffs
(06072014 01:46 AM)Claudio L. Wrote: You're right, that term won't lose precision. As Pauli already pointed out there's no cancellation since: \[\frac{1}{\sqrt{1+x^2}}=1\frac{x^2}{2}+\ldots\] For a small x this will be close to 1 and thus \(\sin(x)\approx\tan(x)\). Quote:I looked at my code, and here's where I was losing digits: You might have a look at how the HP48 calculates the complex arccos. Cheers Thomas 

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