2 May
2004
2 May
'04
6:19 p.m.
On Sun, 2004-05-02 at 17:21, Tim Wegner wrote:
Edwin wrote:
Whereas my code uses:
acos(z) = pi/2 - asin(z)
Which tells us nothing except the relationship between sin and cos. Now tell us how your program calculates asin(z)!!
The formula I use for asin(z) is -i * log(i*z + sqrt(1-z*z)), which looks the same as Fractint's, judging by the comment in mpmath_c.c. My formulas for log and sqrt are a bit different from Fractint's, though. Both my program and Fractint produce the same image for asin(z*z)+c - it's only acos() - and acosh(), I've just discovered - which are different. Regards, -- Edwin