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- function y = betaln(z,w)
- %BETALN Logarithm of beta function.
- % y = betaln(z,w).
- % z and w must be compatible for addition.
- %
- % See also BETAINC, BETA.
- % Ref: Abramowitz & Stegun, sec. 6.2.
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- % Copyright (c) 1984-93 by The MathWorks, Inc.
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- y = gammaln(z)+gammaln(w)-gammaln(z+w);
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