Description of fast matrix multiplication algorithm: ⟨8×9×14:654⟩

Algorithm type

2⁢X4⁢Y6⁢Z4+3⁢X4⁢Y5⁢Z4+29⁢X4⁢Y4⁢Z4+4⁢X6⁢Y3⁢Z2+2⁢X2⁢Y7⁢Z2+9⁢X6⁢Y2⁢Z2+6⁢X4⁢Y2⁢Z4+15⁢X2⁢Y6⁢Z2+6⁢X2⁢Y4⁢Z4+6⁢X2⁢Y2⁢Z6+3⁢X⁢Y8⁢Z+2⁢X4⁢Y3⁢Z2+30⁢X2⁢Y5⁢Z2+7⁢X2⁢Y3⁢Z4+6⁢X⁢Y7⁢Z+X4⁢Y2⁢Z2+40⁢X2⁢Y4⁢Z2+26⁢X2⁢Y2⁢Z4+4⁢X⁢Y5⁢Z2+10⁢X3⁢Y3⁢Z+45⁢X2⁢Y3⁢Z2+24⁢X⁢Y5⁢Z+4⁢X⁢Y4⁢Z2+4⁢X⁢Y3⁢Z3+10⁢X3⁢Y2⁢Z+4⁢X2⁢Y3⁢Z+61⁢X2⁢Y2⁢Z2+25⁢X⁢Y4⁢Z+42⁢X⁢Y3⁢Z2+4⁢X⁢Y2⁢Z3+4⁢X3⁢Y⁢Z+4⁢X2⁢Y2⁢Z+8⁢X2⁢Y⁢Z2+36⁢X⁢Y3⁢Z+74⁢X⁢Y2⁢Z2+8⁢X⁢Y⁢Z3+28⁢X⁢Y2⁢Z+52⁢X⁢Y⁢Z2+6⁢X⁢Y⁢Z2X4Y6Z43X4Y5Z429X4Y4Z44X6Y3Z22X2Y7Z29X6Y2Z26X4Y2Z415X2Y6Z26X2Y4Z46X2Y2Z63XY8Z2X4Y3Z230X2Y5Z27X2Y3Z46XY7ZX4Y2Z240X2Y4Z226X2Y2Z44XY5Z210X3Y3Z45X2Y3Z224XY5Z4XY4Z24XY3Z310X3Y2Z4X2Y3Z61X2Y2Z225XY4Z42XY3Z24XY2Z34X3YZ4X2Y2Z8X2YZ236XY3Z74XY2Z28XYZ328XY2Z52XYZ26XYZ2*X^4*Y^6*Z^4+3*X^4*Y^5*Z^4+29*X^4*Y^4*Z^4+4*X^6*Y^3*Z^2+2*X^2*Y^7*Z^2+9*X^6*Y^2*Z^2+6*X^4*Y^2*Z^4+15*X^2*Y^6*Z^2+6*X^2*Y^4*Z^4+6*X^2*Y^2*Z^6+3*X*Y^8*Z+2*X^4*Y^3*Z^2+30*X^2*Y^5*Z^2+7*X^2*Y^3*Z^4+6*X*Y^7*Z+X^4*Y^2*Z^2+40*X^2*Y^4*Z^2+26*X^2*Y^2*Z^4+4*X*Y^5*Z^2+10*X^3*Y^3*Z+45*X^2*Y^3*Z^2+24*X*Y^5*Z+4*X*Y^4*Z^2+4*X*Y^3*Z^3+10*X^3*Y^2*Z+4*X^2*Y^3*Z+61*X^2*Y^2*Z^2+25*X*Y^4*Z+42*X*Y^3*Z^2+4*X*Y^2*Z^3+4*X^3*Y*Z+4*X^2*Y^2*Z+8*X^2*Y*Z^2+36*X*Y^3*Z+74*X*Y^2*Z^2+8*X*Y*Z^3+28*X*Y^2*Z+52*X*Y*Z^2+6*X*Y*Z

Algorithm definition

The algorithm ⟨8×9×14:654⟩ 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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