Re: [Jprogramming] converting from 'floating' to 'rational'

2019-03-31 Thread Don Kelly
I see what you are doing and for many things using rational numbers is very useful  (i.e. I've used 1r3p1)and the internal representation is a few bits better than a floating point number. Is this important considering that often numbers that aren't rational or involve operations that may requi

Re: [Jprogramming] converting from 'floating' to 'rational'

2019-03-31 Thread Ian Clark
@William -- I've bought Wildberger's book, on your recommendation. Right up my street! > Do keep us posted -- I for one would love to see the result. If I get results with this (and I am getting results already) you won't be able to shut me up! :-) On Sun, 31 Mar 2019 at 23:29, William Tanksley,

Re: [Jprogramming] converting from 'floating' to 'rational'

2019-03-31 Thread William Tanksley, Jr
Ian Clark wrote: > accurate timing for GPS satellites. Both require significant relativistic > corrections: not Special relativistic but General relativistic. When it's OK, you have GOT to check out Wildberger's rational trig -- especially his "universal hyperbolic geometry", which extends the w

Re: [Jprogramming] converting from 'floating' to 'rational'

2019-03-31 Thread Ian Clark
Don Kelly wrote > Of some interest, looking at the sine problem one can note that a =sin(a) =1.23e_5 from the first term of the series and the second term is of the order of 10e_16. The cosine series has a first term of 1 and a second of -7.56e-11. That's the very problem which has triggered my fo

Re: [Jprogramming] Library for JAndroid

2019-03-31 Thread bill lam
I checked jconsole in android didn't use for the -lib parameter. It searches fro libj.so under /data/app/.. folder but your libj.so is placed under /mnt/expand/[uuid]/app I'll fix it in the next beta. Thanks for reporting the issue. Sun, 31 Mar 2019, Ulrich Vollert написал(а): > LIBFILE in jandr

Re: [Jprogramming] Library for JAndroid

2019-03-31 Thread Ulrich Vollert
LIBFILE in jandroid returns /mnt/expand/d9aacd4e-be17-4806-a1fe-cc07effd914b/app/com.jsoftware.j.android-2/lib/arm64/libj.so If I start jconsole in termux with -lib /path/to/jconsole -lib /mnt/expand/d9aacd4e-be17-4806-a1fe-cc07effd914b/app/com.jsoftware.j.android-2/lib/arm64/l