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    Stan Math Library
    5.1.0
    
   Automatic Differentiation 
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Return a symmetric matrix using elements from the upper triangular part of the input matrix.
| T_x | type of elements in the matrix | 
| A | Matrix. | 
| std:invalid_argument | if the matrix is not square. | 
Definition at line 22 of file symmetrize_from_upper_tri.hpp.