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% File src/library/base/man/Bessel.Rd
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% File src/library/base/man/Bessel.Rd
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% Part of the R package, http://www.R-project.org
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% Part of the R package, http://www.R-project.org
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% Copyright 1995-2011 R Core Team
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% Copyright 1995-2013 R Core Team
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% Distributed under GPL 2 or later
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% Distributed under GPL 2 or later
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\name{Bessel}
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\name{Bessel}
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\title{Bessel Functions}
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\title{Bessel Functions}
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\alias{bessel}
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\alias{bessel}
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    exponentially scaled in order to avoid overflow
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    exponentially scaled in order to avoid overflow
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    (\eqn{I_{\nu}}{I(nu)}) or underflow (\eqn{K_{\nu}}{K(nu)}),
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    (\eqn{I_{\nu}}{I(nu)}) or underflow (\eqn{K_{\nu}}{K(nu)}),
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    respectively.}
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    respectively.}
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}
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}
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\value{
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\value{
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  Numeric vector of the same length of \code{x} with the (scaled, if
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  Numeric vector with the (scaled, if \code{expon.scaled = TRUE})
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  \code{expon.scaled = TRUE}) values of the corresponding Bessel function.
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  values of the corresponding Bessel function.
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  The length of the result is the maximum of the lengths of the
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  parameters.  All parameters are recycled to that length.
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}
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}
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\details{
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\details{
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  If \code{expon.scaled = TRUE}, \eqn{e^{-x} I_{\nu}(x)}{exp(-x) I(x;nu)},
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  If \code{expon.scaled = TRUE}, \eqn{e^{-x} I_{\nu}(x)}{exp(-x) I(x;nu)},
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  or \eqn{e^{x} K_{\nu}(x)}{exp(x) K(x;nu)} are returned.
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  or \eqn{e^{x} K_{\nu}(x)}{exp(x) K(x;nu)} are returned.
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