[Ecls-list] Wrong value from complex 'acosh'

Waldek Hebisch hebisch at math.uni.wroc.pl
Sun Dec 16 10:07:48 UTC 2007


Using ECL CVS 2007-12-13 20:09 I get:

> (defparameter *x* #C(0.7d0 1.1d0))
*X*
> (acosh *x*)
#C(1.112595624480056d0 -1.032837729564676d0)
> (cosh #C(1.112595624480056d0 -1.032837729564676d0))
#C(0.8636102407187002d0 -1.1651350004792687d0)
> (cosh #C(1.0328377295646762d0 1.1125956244800557d0))
#C(0.7000000000000001d0 1.1d0)
>

Similar errors occur for other complex inputs.

-- 
                              Waldek Hebisch
hebisch at math.uni.wroc.pl 




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