Description of fast matrix multiplication algorithm: ⟨4×5×9:132⟩

Algorithm type

48⁢X2⁢Y2⁢Z2+2⁢X⁢Y3⁢Z+2⁢X⁢Y2⁢Z2+3⁢X⁢Y⁢Z3+9⁢X2⁢Y⁢Z+22⁢X⁢Y2⁢Z+18⁢X⁢Y⁢Z2+28⁢X⁢Y⁢Z48X2Y2Z22XY3Z2XY2Z23XYZ39X2YZ22XY2Z18XYZ228XYZ48*X^2*Y^2*Z^2+2*X*Y^3*Z+2*X*Y^2*Z^2+3*X*Y*Z^3+9*X^2*Y*Z+22*X*Y^2*Z+18*X*Y*Z^2+28*X*Y*Z

Algorithm definition

The algorithm ⟨4×5×9:132⟩ is taken from:

Andrew I. Perminov. FastMatrixMultiplication, GitHub, February 2026. [ GitHub repository ]

Algorithm description

These encodings are given in compressed text format using the maple computer algebra system. In each cases, the last line could be understood as a description of the encoding with respect to classical matrix multiplication algorithm. As these outputs are structured, one can construct easily a parser to its favorite format using the maple documentation without this software.


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