Toen wij David W. Tamkin kietelden, kwam er dit uit:
I've illustrated in the past how to subtract a number that might be
negative:
*$ $b^-2 HOST ?? ^^.|.^^
Yes, that is a beauty. Go once its own direction, than twice the
opposite, ending up at once the opposite.
*$ $b^-2 HOST ?? ^^.|.^^ means "times -1"
*$ $b^-3 HOST ?? ^^.|.^^ means "times -2"
An alternative (for times -123) is:
*$ dot ?? $b^1 < -123
but that needs $dot.
--
Grtz, Ruud
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