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simplify normalisation for derivatives

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This commit is contained in:
Martin Reinecke 2012-07-06 11:30:53 +02:00
parent 82dc2a541f
commit 0d8c5eae3f
3 changed files with 20 additions and 3 deletions
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10
libsharp/sharp_ylmgen_c.c
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@ -205,3 +205,13 @@ double *sharp_Ylmgen_get_norm (int lmax, int spin)
res[l] = (l<spin) ? 0. : spinsign*0.5*sqrt((2*l+1)/(4*pi));
return res;
}
double *sharp_Ylmgen_get_d1norm (int lmax)
{
const double pi = 3.141592653589793238462643383279502884197;
double *res=RALLOC(double,lmax+1);
for (int l=0; l<=lmax; ++l)
res[l] = (l<1) ? 0. : 0.5*sqrt(l*(l+1.)*(2*l+1.)/(4*pi));
return res;
}