Bjoern Labitzke (hermit@labitzke.isdn.cs.tu-berlin.de) wrote:
: 1)  cot(acot(z)) reported 1 for z=1.2. 1.2 would be correct.
: 2)  tan(atan(z)) reported 1.095032... for z=1.2. 1.2 would be correct.
: 3)  another wrong calculation was reported, which included longer numbers,
:     so I didn't copy it.

would be important, maybe.

1) isnt in libm, (I guess perl derives it from tan, sin, or cos), but 2)
works fine for me, when tried from c (dont have perl at home). Can you
try this please?

	Ignatios