HOME | DOWNLOAD | DOCUMENTATION | FAQ |
> Home > Documentation > Fortran 95 > Global Spectral Analysis
SHPowerL
Compute the power of a real function for a single spherical harmonic degree.
Usage
power
= SHPowerL (cilm
, l
)
Parameters
power
: output, real*8- Power of the function for a single spherical harmonic degree
l
. cilm
: input, real*8, dimension (2,lmaxin
+1,lmaxin
+1)- The spherical harmonic coefficients of the function.
l
: input, integer- The spherical harmonic degree. This must be less than or equal to
lmaxin
.
Description
SHPowerL
will calculate the power of a function expressed in real 4-pi normalized spherical harmonics for a single degree l
. This is explicitly calculated as:
power = Sum_{i=1}^2 Sum_{m=0}^l cilm(i, l+1, m+1)**2
.
See also
shpowerdensityl, shcrosspowerl, shcrosspowerdensityl, shpowerspectrum, shpowerspectrumdensity, shcrosspowerspectrum, shcrosspowerspectrumdensity, shadmitcorr
> Home > Documentation > Fortran 95 > Global Spectral Analysis
Laboratoire Lagrange | Observatoire de la Côte d'Azur | © 2016 SHTOOLS |