Thanks for your help Hans and the pointer to the extended math library.
Lots more to explore now.
Best Wishes
Keith
On Sat, 16 May 2020, 20:46 Hans Hagen,
On 5/16/2020 4:48 PM, Keith McKay wrote:
Answering my own problem here.
I've just searched through the mailing list archives and it seems that if I add [instance=doublefun] I do not get the Arithmetic Overflow error. Joy! fwiw, we have also instance=decimalfun
concerning arithmic:
in metapost we have
scaled : upto 4K bp double : 64 bit floats decimal : configurable accuracy complex : dual doubles (only in luametafun)
in lmtx lua we have:
integer : lua tries to be clever but mixing leads to double float : lua tries to be clever decimal : userdata arbitrary precision (only in lmtx) complex : userdata dual doubles (only in lmtx)
(in lmtx we have an extended math library and these function are also available in luametafun)
Hans
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