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.TH besselk 3 "September 1997" "Scilab Group" "Scilab Function"
.so ../sci.an
.SH NAME
besselk - Modified K sub ALPHA Bessel functions of the second kind.
.SH CALLING SEQUENCE
.nf
y = besselk(alpha,x)
y = besselk(alpha,x,ice)
.fi
.SH PARAMETERS
.TP
x
: real vector with non negative entries
.TP
alpha
: real vector with non negative entries regularly spaced with
increment equal to one \fValpha=alpha0+(n1:n2)\fR
.TP
ice
: integer flag, with default value 1
.SH DESCRIPTION
\fVbesselk(alpha,x)\fR computes K sub ALPHA modified Bessel functions of the
second kind, for real, non-negative order \fValpha\fR
and argument \fVx\fR. \fValpha\fR and \fVx\fR may be vectors.
The output is \fVm\fR-by-\fVn\fR with \fVm = size(x,'*')\fR,
\fVn = size(alpha,'*')\fR whose \fV(i,j)\fR entry is
\fVbesselk(alpha(j),x(i))\fR.
If \fVice\fr is equal to 2 exponentialy scaled Bessel functions is
computed
.SH EXAMPLE
.nf
besselk(0.5:3,1:4)
besselk(0.5:3,1:4,2)
.fi
.SH SEE ALSO
besselj, besseli, bessely
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