Am 27.10.2012 06:48 schrieb Dennis Lee Bieber:

        I don't know about the more modern calculators, but at least up
through my HP-41CX, HP calculators didn't do (binary) "floating
point"... They did a form of BCD with a fixed number of significant
/decimal/ digits

Then, what about sqrt(x)**2 or arcsin(sin(x))? Did that always return the original x?

Thomas
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