/[MITgcm]/MITgcm_contrib/timour_matlab/mscripts/frmax.m
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Contents of /MITgcm_contrib/timour_matlab/mscripts/frmax.m

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Revision 1.1 - (show annotations) (download)
Wed Sep 3 21:22:22 2003 UTC (21 years, 10 months ago) by edhill
Branch: MAIN
CVS Tags: HEAD
Error occurred while calculating annotation data.
initial checkin of Timour's MatLAB scripts

1 function frm=frmax(p,le,r)
2 if (p~=1.)
3 a=p-1.;
4 b=(p+1.-2.*p.*le).*r./le;
5 c=(p.*le+1.-2.*p).*r./le;
6 d=(p.*le-1.).*r.*r./le./le;
7 h=(3.*a.*c-b.*b)./(9.*a.*a);
8 k=(2.*b.*b.*b-9.*a.*b.*c+27.*a.*a.*d)./(27.*a.*a.*a);
9 th=(acos(-k./(2.*(-h).^1.5)))./3.;
10 end %if
11
12 if (p>1)
13 frm=2.*sqrt(-h).*cos(th+4*pi/3)-b./(3.*a);
14 elseif (p<1)
15 frm=2.*sqrt(-h).*cos(th)-b./(3.*a);
16 elseif (p==1)
17 frm=0.5.*sqrt(0.25+2.*r./le)+0.25;
18 elseif (p==0)
19 frm=sqrt(r./le)
20 end
21 return

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