Description of fast matrix multiplication algorithm: ⟨2×9×14:196⟩

Algorithm type

X⁢Y7⁢Z+4⁢X⁢Y6⁢Z+2⁢X2⁢Y3⁢Z2+13⁢X⁢Y5⁢Z+54⁢X2⁢Y2⁢Z2+9⁢X⁢Y4⁢Z+X⁢Y3⁢Z+6⁢X⁢Y2⁢Z+106⁢X⁢Y⁢ZXY7Z4XY6Z2X2Y3Z213XY5Z54X2Y2Z29XY4ZXY3Z6XY2Z106XYZX*Y^7*Z+4*X*Y^6*Z+2*X^2*Y^3*Z^2+13*X*Y^5*Z+54*X^2*Y^2*Z^2+9*X*Y^4*Z+X*Y^3*Z+6*X*Y^2*Z+106*X*Y*Z

Algorithm definition

The algorithm ⟨2×9×14:196⟩ is taken from:

John Edward Hopcroft and Leslie R. Kerr. On minimizing the number of multiplication necessary for matrix multiplication. SIAM Journal on Applied Mathematics, 20(1), January 1971. [DOI]

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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