MathFun

sqrt.generic_spct

abs.generic_spct

<code>abs(x)</code> computes the absolute value of <code>x</code>, <code>sqrt(x)</code>
computes the (principal) square root of <code>x</code>. The functions are applied
to the spectral data, not the wavelengths. The quantity in the spectrum to
which the function is applied depends on the class of <code>x</code> and the current
value of output options.

Definitions of classes, methods, operators and functions for use
in photobiology and radiation meteorology and climatology. Calculation of
effective (weighted) and not-weighted irradiances/doses, fluence rates,
transmittance, reflectance, absorptance, absorbance and diverse ratios and
other derived quantities from spectral data. Local maxima and minima: peaks,
valleys and spikes. Conversion between energy-and photon-based units.
Wavelength interpolation. Astronomical calculations related solar angles and
day length. Colours and vision. This package is part of the 'r4photobiology'
suite, Aphalo, P. J. (2015) <doi:10.19232/uv4pb.2015.1.14>.

Pedro Aphalo

photobiology

Photobiological Calculations

Pedro J. Aphalo

Titta K. Kotilainen

Glenn Davis

Agnese Fazio

MathFun function

<dl><dt>x</dt>
<dd>an object of class "generic_spct"</dd></dl>

Arguments

Miscellaneous Mathematical Functions — MathFun

<dl>

<dt>x</dt>
<dd>an object of class "generic_spct"</dd>

</dl>

MathFun: Miscellaneous Mathematical Functions

Description

Usage

Arguments

See Also