[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
problem with acos
|
From: |
zampala |
|
Subject: |
problem with acos |
|
Date: |
Tue, 28 Jul 2009 05:37:20 -0700 (PDT) |
Hi,
I need to calculate the inverse cosine of this matrix (2x2, complex values):
P =
9.9422e-01 - 0.0000e+00i 8.9732e+08 - 0.0000e+00i
-1.0151e+00 + 0.0000e+00i 3.0910e+05 - 0.0000e+00i
octave:97> acos(P)
ans =
0.10755 - 0.00000i NaN + Infi
3.14159 - 0.17368i 0.00000 + 13.33457i
octave:98> acos(P(1,2))
ans = NaN + Infi
octave:99> acos(8.9732e+8 - 0.0000e+00i)
ans = 0.00000 - 21.30807i
octave:100>
Why is it giving NaN and Inf ?
Why is it not giving NaN and Inf when I calculate the acos manually?
thanks in advance
mirko
--
View this message in context:
http://www.nabble.com/problem-with-acos-tp24698044p24698044.html
Sent from the Octave - General mailing list archive at Nabble.com.
- problem with acos,
zampala <=