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4 /** \page TopicWritingEfficientProductExpression Writing efficient matrix product expressions
12 and evaluate complex product expressions, and discuss the current limitations.
23 \section GEMM General Matrix-Matrix product (GEMM)
25 Let's start with the most common primitive: the matrix product of general dense matrices.
31 When Eigen detects a matrix product, it analyzes both sides of the product to extract a
61     Otherwise the product m2 * m3 is evaluated into a temporary.</td>
68 <td>This is a special feature of Eigen. Here the product between a scalar
69     and a matrix product does not evaluate the matrix product but instead it
70     returns a matrix product expression tracking the scalar scaling factor. <br>
71     Without this optimization, the matrix product would be evaluated into a
83 <td>This is because the product expression has the EvalBeforeNesting bit which
84     enforces the evaluation of the product by the Tranpose expression.</td>
94     and so the matrix product will be immediately evaluated.</td>