02-20-2013
Thanks for your response, Alister.
What do you mean by unsynchronized? The example I gave was just for simplicity, but typically the scripts are perl or python programs that read the file (gigabites in size). But don't write to it or append anything.
Just wondering if I am screwing things up by accessing the file with multiple programs.
Thanks again,
Torch
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CACOS(3) BSD Library Functions Manual CACOS(3)
NAME
cacos -- complex inverse cosine function
SYNOPSIS
double complex
cacos(double complex z);
long double complex
cacosl(long double complex z);
float complex
cacosf(float complex z);
DESCRIPTION
cacos(z) computes the inverse cosine of the complex floating-point number z, with branch cuts outside the interval [-1,1] along the real
axis.
cacos() returns values in a strip of the complex plane with unbounded imaginary part, and real part in the interval [0, Pi].
For all complex floating point numbers z, cacos(conj(z)) = conj(cacos(z)).
SPECIAL VALUES
The conjugate symmetry of cacos() is used to abbreviate the specification of special values.
cacos(+-0 + 0i) returns Pi/2 - 0i.
cacos(+-0 + NaN i) returns Pi/2 + NaN i.
cacos(x + inf i) returns Pi/2 - inf i, for finite x.
cacos(x + NaN i) returns NaN + NaN i, for finite nonzero x.
cacos(-inf + yi) returns Pi - inf i, for finite positive-signed y.
cacos(inf + yi) returns 0 - inf i, for finite positive-signed y.
cacos(-inf + inf i) returns 3Pi/4 - inf i.
cacos(inf + inf i) returns Pi/4 - inf i.
cacos(+-inf + NaN i) returns NaN + inf i.
cacos(NaN + yi) returns NaN + NaN i, for finite y.
cacos(NaN + inf i) returns NaN - inf i.
cacos(NaN + NaN i) returns NaN + NaN i.
NOTES
SEE ALSO
complex(3)
STANDARDS
The cacos() function conforms to ISO/IEC 9899:2011.
4th Berkeley Distribution December 11, 2006 4th Berkeley Distribution