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Description
alm2dl reads and calculates
and where

(1) 

(2) 
where K, is output in unit of and
is unitless.
alm2dl can read the input file either
in FITS or in ASCII formats.
The FITS binary format should contain 3 fields:
index=
(in HEALPix
definition), real part () and imaginary part (). The ASCII
format should contain 4 entries : L, M, Re, Im,
where L is the multipole and M is the multipole.
It can also read data from a single 3 file
(, and )
to calculate correlation spectra BB, EE, TE or TB between and
coefficients.
If the input file contains only coefficients, to calculate
TE or TBspectra,
a file with or coefficients should be added
in the command string.
alm2dl
calculates amplitudes: and phases defined as
in .
alm2dl
also lists the values of the FITS coefficients,
which can be output either to a file or to the
standard output device for display.
Examples
 Calculating or :
 Listing :
 Calculating amplitudes:

alm2dl amp alm.fits lmax 10
reads '
alm.fits' and calculates amplitudes
up to .

alm2dl amp a alm.txt lmax 50 o amp.txt
reads ASCII '
alm.txt' and outputs ASCII
amplitudes up to in '
amp.txt'.
 Calculating phases:

alm2dl ph alm.fits lmax 10
reads '
alm.fits' and displays phases up to .
 Calculating polarizatiom modes and :

alm2dl 3alm.fits tbl lmax 50 o tbl.txt
reads a file '
3alm.fits',
calculates TB correlation spectrum and
writes ASCII coefficients up to to '
tbl.txt'.

alm2dl alm.fits elm.fits tel lmax 50 o tel.txt
reads files '
alm.fits' and
'
elm.fits',
calculates TE correlation spectrum
and writes ASCII coefficients up to to '
tel.txt'.

alm2dl 3alm.fits e lmax 50 o elm.fts
reads a file '
3alm.fits',
and extracts data of Emode writing them
in FITS format to file '
elm.fts' up to .
Next: cl2map
Up: GLESP Description and Examples
Previous: GLESP Description and Examples
Verkhodanov Oleg
20090401