Xah Lee wrote: > I'm still interested, if someone would show the source code, of how > Perl, Python, or Lisp or Java, implement the function that finds the > angle of a complex number.
So you have forgotten to cross-post to comp.lang.java :-) I think at least for strict floating-point Java uses the netlib: http://www.netlib.org/fdlibm/e_atan2.c For normal floating-point calculations I assume Java uses something like FPATAN on x86'er computers: http://www.ews.uiuc.edu/~cjiang/reference/vc107.htm But you can download the source code of the JVM to verify it yourself: https://openjdk.dev.java.net/ -- Frank Buss, [EMAIL PROTECTED] http://www.frank-buss.de, http://www.it4-systems.de -- http://mail.python.org/mailman/listinfo/python-list
