On Thu, Apr 15, 2021 at 05:43:03PM +0800, Qian Yun wrote:
> I found this from github issue #55.
>
> In ComplexCategory, there is
>
> if R is DoubleFloat then
> stoc ==> s_to_c$Lisp
> ctos ==> c_to_s$Lisp
>
> exp x == ctos EXP(stoc x)$Lisp
> log x == ctos LOG(stoc x)$Lisp
> ...... etc
>
> I think "sqrt" should also be optimized by using Lisp call here.
Maybe. AFAICS main point was that we need some implementation
and this was the easiest one. OTOH in some other cases we
use our own implementation to avoid bugs in some Lisp.
--
Waldek Hebisch
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