Currently FriCAS use strings as names of operator properties.
I plan to change this to symbols -- currently I am testing
a patch.
One motivation for change is speed: searching property list
using symbols as keys is much faster than using strings as
keys. On mapleok.input using sbcl this gives about 19% speedup
(72.99s after change, 89.31s before). I have other changes
which speed up mapleok.input, so the percentage may change,
but this clearly shows that symbols are much faster.
Another motivation is that symbols just looks right as keys:
symbols were invented for similar purposes.
--
Waldek Hebisch
[EMAIL PROTECTED]
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