ln and e^x on the 16C?

[Tugdual]

(03-26-2016 11:52 AM)Dave Britten Wrote:  

(03-26-2016 06:31 AM)Tugdual Wrote:  I was checking CORDIC but if the exponential is indeed there the log is missing.
Surprising, wonder how'it was done in early calculators.

I was thinking the Sinclair Scientific would be an excellent candidate, but the algorithm used there appears to require a means of separating the mantissa and exponent.

Interesting reading.
However 10^x = 10*.99^(229.15*(1-x)) appears to be wrong.
I think it is a typo cuz the "magic" constant is -1/log(.99) that is 229.105