File: acosm.man

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.TH acosm 1 "April 1993" "Scilab Group" "Scilab Function"
.so ../sci.an
.SH NAME
acosm - matrix wise cosine inverse
.SH CALLING SEQUENCE
.nf
t=acosm(x)
.fi
.SH PARAMETERS
.TP 10
x
: real or complex square matrix
.TP 10
t
: real or complex square matrix
.SH DESCRIPTION
 \fVt\fR are cosine inverse of the \fVx\fR matrix. Diagonalization
method is used. For nonsymmetric matrices result may 
be inaccurate.One has \fVt=-%i*logm(x+%i*sqrtm(eye-x*x))\fR
.SH EXAMPLE
.nf
A=[1,2;3,4];
cosm(acosm(A))
.fi
.SH SEE ALSO 
acos, sqrtm, logm