File: acosh.man

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.TH acosh 1 "April 1993" "Scilab Group" "Scilab Function"
.so ../sci.an
.SH NAME
acosh - hyperbolic cosine inverse
.SH CALLING SEQUENCE
.nf
[t]=acosh(x)
.fi
.SH PARAMETERS
.TP 10
x
: real or complex vector
.TP 10
t
: real or complex vector
.SH DESCRIPTION
the components of vector \fVt\fR are the ArgCosh of the 
corresponding entries of vector \fVx\fR.
Definition domain is ]1,+infinity[.
It takes his values in
.IG
.nf
     ]0,+inf[ x ]-pi,pi] and  [0] x [0,pi]
.fi
.FI
\" This is for LaTeX 
.LA $$ ]0,+\infty[ \times  ]-\pi,\pi] \quad \mbox{and}
.LA  \quad [0] \times [0,\pi] $$
.SH EXAMPLE
.nf
x=[0,1,%i];
cosh(acosh(x))
.fi