Description of fast matrix multiplication algorithm: ⟨4×24×28:1709⟩

Algorithm type

X2⁢Y24⁢Z2+X⁢Y24⁢Z+3⁢X⁢Y19⁢Z+4⁢X⁢Y18⁢Z+8⁢X⁢Y15⁢Z+30⁢X4⁢Y8⁢Z4+23⁢X2⁢Y12⁢Z2+2⁢X2⁢Y11⁢Z2+6⁢X⁢Y13⁢Z+24⁢X2⁢Y10⁢Z2+26⁢X⁢Y12⁢Z+X⁢Y11⁢Z+78⁢X4⁢Y4⁢Z4+94⁢X2⁢Y8⁢Z2+32⁢X⁢Y10⁢Z+5⁢X2⁢Y7⁢Z2+13⁢X⁢Y9⁢Z+12⁢X4⁢Y2⁢Z4+65⁢X2⁢Y6⁢Z2+75⁢X⁢Y8⁢Z+4⁢X2⁢Y5⁢Z2+2⁢X⁢Y7⁢Z+8⁢X4⁢Y2⁢Z2+182⁢X2⁢Y4⁢Z2+97⁢X⁢Y6⁢Z+13⁢X2⁢Y3⁢Z2+45⁢X⁢Y5⁢Z+242⁢X2⁢Y2⁢Z2+129⁢X⁢Y4⁢Z+20⁢X2⁢Y⁢Z2+106⁢X⁢Y3⁢Z+32⁢X2⁢Y⁢Z+176⁢X⁢Y2⁢Z+150⁢X⁢Y⁢ZX2Y24Z2XY24Z3XY19Z4XY18Z8XY15Z30X4Y8Z423X2Y12Z22X2Y11Z26XY13Z24X2Y10Z226XY12ZXY11Z78X4Y4Z494X2Y8Z232XY10Z5X2Y7Z213XY9Z12X4Y2Z465X2Y6Z275XY8Z4X2Y5Z22XY7Z8X4Y2Z2182X2Y4Z297XY6Z13X2Y3Z245XY5Z242X2Y2Z2129XY4Z20X2YZ2106XY3Z32X2YZ176XY2Z150XYZX^2*Y^24*Z^2+X*Y^24*Z+3*X*Y^19*Z+4*X*Y^18*Z+8*X*Y^15*Z+30*X^4*Y^8*Z^4+23*X^2*Y^12*Z^2+2*X^2*Y^11*Z^2+6*X*Y^13*Z+24*X^2*Y^10*Z^2+26*X*Y^12*Z+X*Y^11*Z+78*X^4*Y^4*Z^4+94*X^2*Y^8*Z^2+32*X*Y^10*Z+5*X^2*Y^7*Z^2+13*X*Y^9*Z+12*X^4*Y^2*Z^4+65*X^2*Y^6*Z^2+75*X*Y^8*Z+4*X^2*Y^5*Z^2+2*X*Y^7*Z+8*X^4*Y^2*Z^2+182*X^2*Y^4*Z^2+97*X*Y^6*Z+13*X^2*Y^3*Z^2+45*X*Y^5*Z+242*X^2*Y^2*Z^2+129*X*Y^4*Z+20*X^2*Y*Z^2+106*X*Y^3*Z+32*X^2*Y*Z+176*X*Y^2*Z+150*X*Y*Z

Algorithm definition

The algorithm ⟨4×24×28:1709⟩ is serendipitous tensor product (⟨2×6×7:66⟩ - 8) ⊗ ⟨2×4×4:26⟩ +3⟨2×4×8:51⟩ +⟨4×4×4:48⟩.

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.


Back to main table