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  • Committer: Bazaar Package Importer
  • Author(s): Torsten Werner
  • Date: 2005-01-09 22:58:21 UTC
  • mfrom: (1.1.1 upstream)
  • Revision ID: james.westby@ubuntu.com-20050109225821-473xr8vhgugxxx5j
Tags: 3.0-12
http://bugs.debian.org/255869
changed configure.in to build scilab's own malloc.o, closes: #255869

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macros/elem/log2.sci
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function [f,e]=log2(x)
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[lhs,rhs]=argn(0)
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if lhs==1 then
 
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if argn(1)==1 then
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  f=log(x)/log(2)
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else
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  k = find(x<>0);
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  e(k) = ceil(log(abs(x(k)))/log(2));
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  f(k) = x(k)./(2^e(k));
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  k = find(f>=1);
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  f(k) = 0.5
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  e(k) = e(k)+1
 
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  [f,e]=frexp(x)
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end
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endfunction