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function k=lar2rc(g)
//lar2rc convert log area ratios to reflection coefficients.
// Calling Sequence
// k = lar2rc(g)
// Parameters
// g: define log area ratios.
// k: returns the reflection coefficients.
// Example
//g = [0.6389 4.5989 0.0063 0.0163 -0.0163];
//k = lar2rc(g)
// Output :
//k =
//
//
// column 1 to 4
//
// 0.3090095 0.9800747 0.0031500 0.0081498
//
// column 5
//
// - 0.0081498
// See also
//
// Author
// Jitendra Singh
//
//Modified to match MATLAB o/p when i/p is of type char and is a string by Debdeep Dey
if or(type(g)==10) then
[r,c]=size(g);
if r==1 & c==1 then
k=ones(1,length(g));
else
k=ones(size(g,1), size(g,2))
end
else
if ~isreal(g) then
error('Log area ratios must be real.')
end
k=-(tanh(-g/2));
end
endfunction
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