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Test Your Knowledge in Computers #905
Difficulty: Easy
Generally speaking, Unix systems are commercial, closed source and propriety operating systems so it is expensive to customize for supercomputing projects. Linux, on the other hand, is free and easier to customize.
True or False?
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tanh(3m) [bsd man page]

SINH(3M)																  SINH(3M)

sinh, cosh, tanh - hyperbolic functions SYNOPSIS
#include <math.h> double sinh(x) double x; double cosh(x) double x; double tanh(x) double x; DESCRIPTION
These functions compute the designated hyperbolic functions for real arguments. ERROR (due to Roundoff etc.) Below 2.4 ulps; an ulp is one Unit in the Last Place. DIAGNOSTICS
Sinh and cosh return the reserved operand on a VAX if the correct value would overflow. SEE ALSO
math(3M), infnan(3M) AUTHOR
W. Kahan, Kwok-Choi Ng 4th Berkeley Distribution May 12, 1986 SINH(3M)

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