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function [tree]=sci_beta(tree)
// Copyright INRIA
// M2SCI function
// Conversion function for Matlab beta()
// Input: tree = Matlab funcall tree
// Ouput: tree = Scilab equivalent for tree
// V.C.
[A,B]=getrhs(tree)
A=convert2double(A)
B=convert2double(B)
tree.rhs=list(A,B)
if is_a_scalar(A) & not_a_scalar(B) then // A is a scalar but not B
n=gettempvar()
insert(Equal(list(n),B))
insert(Equal(list(Operation("ins",list(n,Cste(":")),list())),A))
tree.rhs(1)=n
tree.lhs(1).dims=B.dims
elseif is_a_scalar(B) & not_a_scalar(A) then // B is be a scalar but not A
n=gettempvar()
insert(Equal(list(n),A))
insert(Equal(list(Operation("ins",list(n,Cste(":")),list())),B))
tree.rhs(2)=n
tree.lhs(1).dims=A.dims
elseif is_a_scalar(A) & is_a_scalar(B) then // Both A and B are scalars
elseif not_a_scalar(A) & not_a_scalar(B) then // A and B have the same size
else
tree.name="mtlb_beta"
end
tree.lhs(1).type=Type(Double,Real)
endfunction
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