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				@@ -421,17 +421,6 @@ enum LineSearchInterpolationType { 
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				 enum CovarianceAlgorithmType { 
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				   DENSE_SVD, 
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				   SPARSE_QR, 
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				- 
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				-  // TODO(sameeragarwal): Expand this to include 
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				-  // DENSE_QR (Eigen) 
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				-  // DENSE_SCHUR_SVD (Eigen) 
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				-  // SPARSE_SCHUR_LU (Eigen, SuiteSparse) 
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				-  // 
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				-  // Are the following two a good idea? given that they are not rank 
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				-  // revealing. 
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				-  // 
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				-  // DENSE_SCHUR_CHOLESKY (Eigen) 
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				-  // SPARSE_SCHUR_CHOLESKY (Eigen, SuiteSparse) 
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				 }; 
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				 // It is a near impossibility that user code generates this exact 
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