Description of fast matrix multiplication algorithm: ⟨9×12×16:1035⟩

Algorithm type

48⁢X4⁢Y9⁢Z6+48⁢X2⁢Y9⁢Z6+24⁢X2⁢Y8⁢Z6+96⁢X2⁢Y9⁢Z3+96⁢X4⁢Y6⁢Z3+134⁢X⁢Y9⁢Z3+42⁢X4⁢Y4⁢Z4+2⁢X⁢Y8⁢Z3+3⁢X9⁢Y⁢Z+104⁢X2⁢Y6⁢Z3+8⁢X⁢Y7⁢Z3+6⁢X⁢Y⁢Z9+27⁢X6⁢Y2⁢Z2+12⁢X2⁢Y6⁢Z2+40⁢X2⁢Y5⁢Z3+12⁢X2⁢Y4⁢Z4+33⁢X2⁢Y2⁢Z6+6⁢X⁢Y2⁢Z6+45⁢X2⁢Y4⁢Z2+24⁢X2⁢Y2⁢Z4+6⁢X⁢Y6⁢Z+12⁢X⁢Y⁢Z6+6⁢X3⁢Y3⁢Z+6⁢X3⁢Y2⁢Z2+9⁢X3⁢Y⁢Z3+6⁢X⁢Y4⁢Z2+6⁢X⁢Y3⁢Z3+15⁢X3⁢Y2⁢Z+12⁢X3⁢Y⁢Z2+42⁢X2⁢Y2⁢Z2+12⁢X⁢Y4⁢Z+18⁢X⁢Y2⁢Z3+21⁢X3⁢Y⁢Z+12⁢X⁢Y2⁢Z2+21⁢X⁢Y⁢Z3+21⁢X⁢Y2⁢Z48X4Y9Z648X2Y9Z624X2Y8Z696X2Y9Z396X4Y6Z3134XY9Z342X4Y4Z42XY8Z33X9YZ104X2Y6Z38XY7Z36XYZ927X6Y2Z212X2Y6Z240X2Y5Z312X2Y4Z433X2Y2Z66XY2Z645X2Y4Z224X2Y2Z46XY6Z12XYZ66X3Y3Z6X3Y2Z29X3YZ36XY4Z26XY3Z315X3Y2Z12X3YZ242X2Y2Z212XY4Z18XY2Z321X3YZ12XY2Z221XYZ321XY2Z48*X^4*Y^9*Z^6+48*X^2*Y^9*Z^6+24*X^2*Y^8*Z^6+96*X^2*Y^9*Z^3+96*X^4*Y^6*Z^3+134*X*Y^9*Z^3+42*X^4*Y^4*Z^4+2*X*Y^8*Z^3+3*X^9*Y*Z+104*X^2*Y^6*Z^3+8*X*Y^7*Z^3+6*X*Y*Z^9+27*X^6*Y^2*Z^2+12*X^2*Y^6*Z^2+40*X^2*Y^5*Z^3+12*X^2*Y^4*Z^4+33*X^2*Y^2*Z^6+6*X*Y^2*Z^6+45*X^2*Y^4*Z^2+24*X^2*Y^2*Z^4+6*X*Y^6*Z+12*X*Y*Z^6+6*X^3*Y^3*Z+6*X^3*Y^2*Z^2+9*X^3*Y*Z^3+6*X*Y^4*Z^2+6*X*Y^3*Z^3+15*X^3*Y^2*Z+12*X^3*Y*Z^2+42*X^2*Y^2*Z^2+12*X*Y^4*Z+18*X*Y^2*Z^3+21*X^3*Y*Z+12*X*Y^2*Z^2+21*X*Y*Z^3+21*X*Y^2*Z

Algorithm definition

The algorithm ⟨9×12×16:1035⟩ 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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