Description of fast matrix multiplication algorithm: ⟨4×13×18:639⟩

Algorithm type

X4Y8Z4+2X4Y7Z4+10X4Y6Z4+4X4Y5Z4+2X2Y9Z2+10X4Y4Z4+10X2Y8Z2+2X4Y3Z4+4X3Y4Z4+12X2Y7Z2+2XY9Z+44X2Y6Z2+18XY8Z+6X2Y5Z2+10XY7Z+48X2Y4Z2+46XY6Z+32X2Y3Z2+4XY5Z+2XY4Z2+62X2Y2Z2+64XY4Z+2X2YZ2+52XY3Z+2XY2Z2+112XY2Z+76XYZX4Y8Z42X4Y7Z410X4Y6Z44X4Y5Z42X2Y9Z210X4Y4Z410X2Y8Z22X4Y3Z44X3Y4Z412X2Y7Z22XY9Z44X2Y6Z218XY8Z6X2Y5Z210XY7Z48X2Y4Z246XY6Z32X2Y3Z24XY5Z2XY4Z262X2Y2Z264XY4Z2X2YZ252XY3Z2XY2Z2112XY2Z76XYZX^4*Y^8*Z^4+2*X^4*Y^7*Z^4+10*X^4*Y^6*Z^4+4*X^4*Y^5*Z^4+2*X^2*Y^9*Z^2+10*X^4*Y^4*Z^4+10*X^2*Y^8*Z^2+2*X^4*Y^3*Z^4+4*X^3*Y^4*Z^4+12*X^2*Y^7*Z^2+2*X*Y^9*Z+44*X^2*Y^6*Z^2+18*X*Y^8*Z+6*X^2*Y^5*Z^2+10*X*Y^7*Z+48*X^2*Y^4*Z^2+46*X*Y^6*Z+32*X^2*Y^3*Z^2+4*X*Y^5*Z+2*X*Y^4*Z^2+62*X^2*Y^2*Z^2+64*X*Y^4*Z+2*X^2*Y*Z^2+52*X*Y^3*Z+2*X*Y^2*Z^2+112*X*Y^2*Z+76*X*Y*Z

Algorithm definition

The algorithm ⟨4×13×18:639⟩ could be constructed using the following decomposition:

⟨4×13×18:639⟩ = ⟨2×4×6:39⟩ + ⟨2×4×6:39⟩ + ⟨2×5×6:48⟩ + ⟨2×5×6:48⟩ + ⟨2×4×6:39⟩ + ⟨2×4×6:39⟩ + ⟨2×4×6:39⟩ + ⟨2×4×6:39⟩ + ⟨2×4×6:39⟩ + ⟨2×4×6:39⟩ + ⟨2×4×6:39⟩ + ⟨2×5×6:48⟩ + ⟨2×5×6:48⟩ + ⟨2×5×6:48⟩ + ⟨2×5×6:48⟩.

This decomposition is defined by the following equality:

TraceMulA_1_1A_1_2A_1_3A_1_4A_1_5A_1_6A_1_7A_1_8A_1_9A_1_10A_1_11A_1_12A_1_13A_2_1A_2_2A_2_3A_2_4A_2_5A_2_6A_2_7A_2_8A_2_9A_2_10A_2_11A_2_12A_2_13A_3_1A_3_2A_3_3A_3_4A_3_5A_3_6A_3_7A_3_8A_3_9A_3_10A_3_11A_3_12A_3_13A_4_1A_4_2A_4_3A_4_4A_4_5A_4_6A_4_7A_4_8A_4_9A_4_10A_4_11A_4_12A_4_13B_1_1B_1_2B_1_3B_1_4B_1_5B_1_6B_1_7B_1_8B_1_9B_1_10B_1_11B_1_12B_1_13B_1_14B_1_15B_1_16B_1_17B_1_18B_2_1B_2_2B_2_3B_2_4B_2_5B_2_6B_2_7B_2_8B_2_9B_2_10B_2_11B_2_12B_2_13B_2_14B_2_15B_2_16B_2_17B_2_18B_3_1B_3_2B_3_3B_3_4B_3_5B_3_6B_3_7B_3_8B_3_9B_3_10B_3_11B_3_12B_3_13B_3_14B_3_15B_3_16B_3_17B_3_18B_4_1B_4_2B_4_3B_4_4B_4_5B_4_6B_4_7B_4_8B_4_9B_4_10B_4_11B_4_12B_4_13B_4_14B_4_15B_4_16B_4_17B_4_18B_5_1B_5_2B_5_3B_5_4B_5_5B_5_6B_5_7B_5_8B_5_9B_5_10B_5_11B_5_12B_5_13B_5_14B_5_15B_5_16B_5_17B_5_18B_6_1B_6_2B_6_3B_6_4B_6_5B_6_6B_6_7B_6_8B_6_9B_6_10B_6_11B_6_12B_6_13B_6_14B_6_15B_6_16B_6_17B_6_18B_7_1B_7_2B_7_3B_7_4B_7_5B_7_6B_7_7B_7_8B_7_9B_7_10B_7_11B_7_12B_7_13B_7_14B_7_15B_7_16B_7_17B_7_18B_8_1B_8_2B_8_3B_8_4B_8_5B_8_6B_8_7B_8_8B_8_9B_8_10B_8_11B_8_12B_8_13B_8_14B_8_15B_8_16B_8_17B_8_18B_9_1B_9_2B_9_3B_9_4B_9_5B_9_6B_9_7B_9_8B_9_9B_9_10B_9_11B_9_12B_9_13B_9_14B_9_15B_9_16B_9_17B_9_18B_10_1B_10_2B_10_3B_10_4B_10_5B_10_6B_10_7B_10_8B_10_9B_10_10B_10_11B_10_12B_10_13B_10_14B_10_15B_10_16B_10_17B_10_18B_11_1B_11_2B_11_3B_11_4B_11_5B_11_6B_11_7B_11_8B_11_9B_11_10B_11_11B_11_12B_11_13B_11_14B_11_15B_11_16B_11_17B_11_18B_12_1B_12_2B_12_3B_12_4B_12_5B_12_6B_12_7B_12_8B_12_9B_12_10B_12_11B_12_12B_12_13B_12_14B_12_15B_12_16B_12_17B_12_18B_13_1B_13_2B_13_3B_13_4B_13_5B_13_6B_13_7B_13_8B_13_9B_13_10B_13_11B_13_12B_13_13B_13_14B_13_15B_13_16B_13_17B_13_18C_1_1C_1_2C_1_3C_1_4C_2_1C_2_2C_2_3C_2_4C_3_1C_3_2C_3_3C_3_4C_4_1C_4_2C_4_3C_4_4C_5_1C_5_2C_5_3C_5_4C_6_1C_6_2C_6_3C_6_4C_7_1C_7_2C_7_3C_7_4C_8_1C_8_2C_8_3C_8_4C_9_1C_9_2C_9_3C_9_4C_10_1C_10_2C_10_3C_10_4C_11_1C_11_2C_11_3C_11_4C_12_1C_12_2C_12_3C_12_4C_13_1C_13_2C_13_3C_13_4C_14_1C_14_2C_14_3C_14_4C_15_1C_15_2C_15_3C_15_4C_16_1C_16_2C_16_3C_16_4C_17_1C_17_2C_17_3C_17_4C_18_1C_18_2C_18_3C_18_4=TraceMulA_3_4A_3_1A_3_2A_3_3A_4_4A_4_1A_4_2A_4_3B_4_1-B_5_1-B_4_13B_4_2-B_5_2-B_4_14B_4_3-B_5_3-B_4_15B_4_4-B_5_4-B_4_16B_4_5-B_5_5-B_4_17B_4_6-B_5_6-B_4_18B_1_1-B_6_1-B_1_13B_1_2-B_6_2-B_1_14B_1_3-B_6_3-B_1_15B_1_4-B_6_4-B_1_16B_1_5-B_6_5-B_1_17B_1_6-B_6_6-B_1_18B_2_1-B_7_1-B_2_13B_2_2-B_7_2-B_2_14B_2_3-B_7_3-B_2_15B_2_4-B_7_4-B_2_16B_2_5-B_7_5-B_2_17B_2_6-B_7_6-B_2_18B_3_1-B_8_1-B_3_13B_3_2-B_8_2-B_3_14B_3_3-B_8_3-B_3_15B_3_4-B_8_4-B_3_16B_3_5-B_8_5-B_3_17B_3_6-B_8_6-B_3_18C_1_1+C_1_3C_1_2+C_1_4C_2_1+C_2_3C_2_2+C_2_4C_3_1+C_3_3C_3_2+C_3_4C_4_1+C_4_3C_4_2+C_4_4C_5_1+C_5_3C_5_4+C_5_2C_6_1+C_6_3C_6_2+C_6_4+TraceMulA_1_5A_1_6A_1_7A_1_8A_2_5A_2_6A_2_7A_2_8-B_4_7+B_5_7-B_5_13-B_4_8+B_5_8-B_5_14B_5_9-B_4_9-B_5_15B_5_10-B_4_10-B_5_16-B_4_11+B_5_11-B_5_17-B_4_12+B_5_12-B_5_18-B_1_7+B_6_7-B_6_13-B_1_8+B_6_8-B_6_14-B_1_9+B_6_9-B_6_15-B_1_10+B_6_10-B_6_16-B_1_11+B_6_11-B_6_17-B_1_12+B_6_12-B_6_18-B_2_7+B_7_7-B_7_13-B_2_8+B_7_8-B_7_14-B_2_9+B_7_9-B_7_15-B_2_10+B_7_10-B_7_16-B_2_11+B_7_11-B_7_17-B_2_12+B_7_12-B_7_18-B_3_7+B_8_7-B_8_13-B_3_8+B_8_8-B_8_14-B_3_9+B_8_9-B_8_15-B_3_10+B_8_10-B_8_16-B_3_11+B_8_11-B_8_17-B_3_12+B_8_12-B_8_18C_7_1+C_7_3C_7_2+C_7_4C_8_1+C_8_3C_8_2+C_8_4C_9_1+C_9_3C_9_2+C_9_4C_10_1+C_10_3C_10_2+C_10_4C_11_1+C_11_3C_11_2+C_11_4C_12_1+C_12_3C_12_2+C_12_4+TraceMulA_1_9A_1_10A_1_11A_1_12A_1_13A_2_9A_2_10A_2_11A_2_12A_2_13-B_9_7+B_9_13-B_9_8+B_9_14-B_9_9+B_9_15-B_9_10+B_9_16-B_9_11+B_9_17-B_9_12+B_9_18-B_10_7-B_4_13+B_10_13-B_10_8-B_4_14+B_10_14-B_10_9-B_4_15+B_10_15-B_10_10-B_4_16+B_10_16-B_10_11-B_4_17+B_10_17-B_10_12-B_4_18+B_10_18-B_11_7-B_1_13+B_11_13-B_11_8-B_1_14+B_11_14-B_11_9-B_1_15+B_11_15-B_11_10-B_1_16+B_11_16-B_11_11-B_1_17+B_11_17-B_11_12-B_1_18+B_11_18-B_12_7-B_2_13+B_12_13-B_12_8-B_2_14+B_12_14-B_12_9-B_2_15+B_12_15-B_12_10-B_2_16+B_12_16-B_12_11-B_2_17+B_12_17-B_12_12-B_2_18+B_12_18-B_13_7-B_3_13+B_13_13-B_13_8-B_3_14+B_13_14-B_13_9-B_3_15+B_13_15-B_13_10-B_3_16+B_13_16-B_13_11-B_3_17+B_13_17-B_13_12-B_3_18+B_13_18C_13_1C_13_2C_14_1C_14_2C_15_1C_15_2C_16_1C_16_2C_17_1C_17_2C_18_1C_18_2+TraceMulA_3_9A_3_10A_3_11A_3_12A_3_13A_4_9A_4_10A_4_11A_4_12A_4_13-B_9_1+B_9_13-B_9_2+B_9_14-B_9_3+B_9_15-B_9_4+B_9_16-B_9_5+B_9_17-B_9_6+B_9_18-B_10_1-B_5_13+B_10_13-B_10_2-B_5_14+B_10_14-B_10_3-B_5_15+B_10_15-B_10_4-B_5_16+B_10_16-B_10_5-B_5_17+B_10_17-B_10_6-B_5_18+B_10_18-B_11_1-B_6_13+B_11_13-B_11_2-B_6_14+B_11_14-B_11_3-B_6_15+B_11_15-B_11_4-B_6_16+B_11_16-B_11_5-B_6_17+B_11_17-B_11_6-B_6_18+B_11_18-B_12_1-B_7_13+B_12_13-B_12_2-B_7_14+B_12_14-B_12_3-B_7_15+B_12_15-B_12_4-B_7_16+B_12_16-B_12_5-B_7_17+B_12_17-B_12_6-B_7_18+B_12_18-B_13_1-B_8_13+B_13_13-B_13_2-B_8_14+B_13_14-B_13_3-B_8_15+B_13_15-B_13_4-B_8_16+B_13_16-B_13_5-B_8_17+B_13_17-B_13_6-B_8_18+B_13_18C_13_3C_13_4C_14_3C_14_4C_15_3C_15_4C_16_3C_16_4C_17_3C_17_4C_18_3C_18_4+TraceMulA_1_4+A_1_5A_1_1+A_1_6A_1_2+A_1_7A_1_3+A_1_8A_2_4+A_2_5A_2_1+A_2_6A_2_2+A_2_7A_2_3+A_2_8B_4_7B_4_8B_4_9B_4_10B_4_11B_4_12B_1_7B_1_8B_1_9B_1_10B_1_11B_1_12B_2_7B_2_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_17B_9_6B_9_18B_10_1B_5_13B_10_13B_10_2B_5_14B_10_14B_10_3B_5_15B_10_15B_10_4B_5_16B_10_16B_10_5B_5_17B_10_17B_10_6B_5_18B_10_18B_11_1B_6_13B_11_13B_11_2B_6_14B_11_14B_11_3B_6_15B_11_15B_11_4B_6_16B_11_16B_11_5B_6_17B_11_17B_11_6B_6_18B_11_18B_12_1B_7_13B_12_13B_12_2B_7_14B_12_14B_12_3B_7_15B_12_15B_12_4B_7_16B_12_16B_12_5B_7_17B_12_17B_12_6B_7_18B_12_18B_13_1B_8_13B_13_13B_13_2B_8_14B_13_14B_13_3B_8_15B_13_15B_13_4B_8_16B_13_16B_13_5B_8_17B_13_17B_13_6B_8_18B_13_18C_13_3C_13_4C_14_3C_14_4C_15_3C_15_4C_16_3C_16_4C_17_3C_17_4C_18_3C_18_4TraceMulA_1_4A_1_5A_1_1A_1_6A_1_2A_1_7A_1_3A_1_8A_2_4A_2_5A_2_1A_2_6A_2_2A_2_7A_2_3A_2_8B_4_7B_4_8B_4_9B_4_10B_4_11B_4_12B_1_7B_1_8B_1_9B_1_10B_1_11B_1_12B_2_7B_2_8B_2_9B_2_10B_2_11B_2_12B_3_7B_3_8B_3_9B_3_10B_3_11B_3_12C_1_1C_7_1C_1_2C_7_2C_2_1C_8_1C_2_2C_8_2C_3_1C_9_1C_3_2C_9_2C_4_1C_10_1C_4_2C_10_2C_11_1C_5_1C_11_2C_5_2C_6_1C_12_1C_6_2C_12_2TraceMulA_1_4A_1_10A_1_1A_1_11A_1_2A_1_12A_1_3A_1_13A_2_4A_2_10A_2_1A_2_11A_2_2A_2_12A_2_3A_2_13B_4_13B_4_14B_4_15B_4_16B_4_17B_4_18B_1_13B_1_14B_1_15B_1_16B_1_17B_1_18B_2_13B_2_14B_2_15B_2_16B_2_17B_2_18B_3_13B_3_14B_3_15B_3_16B_3_17B_3_18C_1_1C_13_1C_1_3C_13_3C_1_2C_13_2C_1_4C_13_4C_2_1C_14_1C_2_3C_14_3C_2_2C_14_2C_2_4C_14_4C_3_1C_15_1C_3_3C_15_3C_3_2C_15_2C_3_4C_15_4C_4_1C_16_1C_4_3C_16_3C_4_2C_16_2C_4_4C_16_4C_5_1C_17_1C_5_3C_17_3C_5_2C_17_2C_5_4C_17_4C_6_1C_18_1C_6_3C_18_3C_6_2C_18_2C_6_4C_18_4TraceMulA_1_4A_3_4A_1_1A_3_1A_1_2A_3_2A_1_3A_3_3A_2_4A_4_4A_2_1A_4_1A_2_2A_4_2A_2_3A_4_3B_4_1B_10_1B_4_7B_4_2B_10_2B_4_8B_4_3B_10_3B_4_9B_4_4B_10_4B_4_10B_4_5B_10_5B_4_11B_4_6B_10_6B_4_12B_1_1B_11_1B_1_7B_1_2B_11_2B_1_8B_1_3B_11_3B_1_9B_1_4B_11_4B_1_10B_1_5B_11_5B_1_11B_1_6B_11_6B_1_12B_2_1B_12_1B_2_7B_2_2B_12_2B_2_8B_2_3B_12_3B_2_9B_2_4B_12_4B_2_10B_2_5B_12_5B_2_11B_2_6B_12_6B_2_12B_3_1B_13_1B_3_7B_3_2B_13_2B_3_8B_3_3B_13_3B_3_9B_3_4B_13_4B_3_10B_3_5B_13_5B_3_11B_3_6B_13_6B_3_12C_1_1C_1_2C_2_1C_2_2C_3_1C_3_2C_4_1C_4_2C_5_1C_5_2C_6_1C_6_2TraceMulA_3_4A_1_5A_3_1A_1_6A_3_2A_1_7A_3_3A_1_8A_4_4A_2_5A_4_1A_2_6A_4_2A_2_7A_4_3A_2_8B_5_1B_4_7B_5_2B_4_8B_5_3B_4_9B_5_4B_4_10B_5_5B_4_11B_5_6B_4_12B_6_1B_1_7B_6_2B_1_8B_6_3B_1_9B_6_4B_1_10B_6_5B_1_11B_6_6B_1_12B_7_1B_2_7B_7_2B_2_8B_7_3B_2_9B_7_4B_2_10B_7_5B_2_11B_7_6B_2_12B_8_1B_3_7B_8_2B_3_8B_8_3B_3_9B_8_4B_3_10B_8_5B_3_11B_8_6B_3_12C_1_1C_7_3C_1_2C_7_4C_2_1C_8_3C_2_2C_8_4C_3_1C_9_3C_3_2C_9_4C_4_1C_10_3C_4_2C_10_4C_5_1C_11_3C_5_2C_11_4C_6_1C_12_3C_6_2C_12_4TraceMulA_3_4A_3_5A_3_1A_3_6A_3_2A_3_7A_3_3A_3_8A_4_5A_4_4A_4_1A_4_6A_4_2A_4_7A_4_3A_4_8B_5_1B_5_2B_5_3B_5_4B_5_5B_5_6B_6_1B_6_2B_6_3B_6_4B_6_5B_6_6B_7_1B_7_2B_7_3B_7_4B_7_5B_7_6B_8_1B_8_2B_8_3B_8_4B_8_5B_8_6C_1_3C_7_3C_1_4C_7_4C_2_3C_8_3C_2_4C_8_4C_3_3C_9_3C_3_4C_9_4C_4_3C_10_3C_4_4C_10_4C_11_3C_5_3C_5_4C_11_4C_6_3C_12_3C_6_4C_12_4TraceMulA_1_5A_3_5A_1_6A_3_6A_1_7A_3_7A_1_8A_3_8A_4_5A_2_5A_4_6A_2_6A_2_7A_4_7A_2_8A_4_8B_5_1B_5_7B_10_7B_5_2B_5_8B_10_8B_5_3B_5_9B_10_9B_5_4B_5_10B_10_10B_5_11B_5_5B_10_11B_5_6B_5_12B_10_12B_6_1B_6_7B_11_7B_6_2B_6_8B_11_8B_6_3B_6_9B_11_9B_6_4B_6_10B_11_10B_6_5B_6_11B_11_11B_6_6B_6_12B_11_12B_7_1B_7_7B_12_7B_7_2B_7_8B_12_8B_7_3B_7_9B_12_9B_7_4B_7_10B_12_10B_7_5B_7_11B_12_11B_7_6B_7_12B_12_12B_8_1B_8_7B_13_7B_8_2B_8_8B_13_8B_8_3B_8_9B_13_9B_8_10B_8_4B_13_10B_8_5B_8_11B_13_11B_8_6B_8_12B_13_12C_7_3C_7_4C_8_3C_8_4C_9_3C_9_4C_10_3C_10_4C_11_3C_11_4C_12_3C_12_4TraceMulA_3_5A_3_10A_3_6A_3_11A_3_7A_3_12A_3_8A_3_13A_4_5A_4_10A_4_6A_4_11A_4_7A_4_12A_4_8A_4_13B_5_13B_5_14B_5_15B_5_16B_5_17B_5_18B_6_13B_6_14B_6_15B_6_16B_6_17B_6_18B_7_13B_7_14B_7_15B_7_16B_7_17B_7_18B_8_13B_8_14B_8_15B_8_16B_8_17B_8_18C_7_1C_13_1C_7_3C_13_3C_7_2C_13_2C_7_4C_13_4C_8_1C_14_1C_8_3C_14_3C_8_2C_14_2C_8_4C_14_4C_9_1C_15_1C_9_3C_15_3C_9_2C_15_2C_9_4C_15_4C_10_1C_16_1C_10_3C_16_3C_10_2C_16_2C_10_4C_16_4C_11_1C_17_1C_11_3C_17_3C_11_2C_17_2C_11_4C_17_4C_12_1C_18_1C_12_3C_18_3C_12_2C_18_2C_12_4C_18_4TraceMulA_1_9A_1_4A_3_4A_1_10A_1_1A_3_1A_1_11A_1_2A_3_2A_1_12A_1_3A_3_3A_1_13A_2_9A_2_4A_4_4A_2_10A_2_1A_4_1A_2_11A_2_2A_4_2A_2_12A_2_3A_4_3A_2_13B_9_1B_9_2B_9_3B_9_4B_9_5B_9_6B_10_1B_4_13B_10_2B_4_14B_10_3B_4_15B_10_4B_4_16B_10_5B_4_17B_10_6B_4_18B_11_1B_1_13B_11_2B_1_14B_11_3B_1_15B_11_4B_1_16B_11_5B_1_17B_11_6B_1_18B_12_1B_2_13B_12_2B_2_14B_12_3B_2_15B_12_4B_2_16B_12_5B_2_17B_12_6B_2_18B_13_1B_3_13B_13_2B_3_14B_13_3B_3_15B_13_4B_3_16B_13_5B_3_17B_13_6B_3_18C_1_1C_1_3C_13_3C_1_2C_1_4C_13_4C_2_1C_2_3C_14_3C_2_2C_2_4C_14_4C_3_1C_3_3C_15_3C_3_2C_3_4C_15_4C_4_1C_4_3C_16_3C_4_2C_4_4C_16_4C_5_1C_5_3C_17_3C_5_4C_5_2C_17_4C_6_1C_6_3C_18_3C_6_2C_6_4C_18_4TraceMulA_3_9A_1_5A_3_5A_3_10A_1_6A_3_6A_3_11A_1_7A_3_7A_3_12A_1_8A_3_8A_3_13A_4_9A_4_5A_2_5A_4_10A_4_6A_2_6A_4_11A_2_7A_4_7A_4_12A_2_8A_4_8A_4_13B_9_7B_9_8B_9_9B_9_10B_9_11B_9_12B_10_7B_5_13B_10_8B_5_14B_10_9B_5_15B_10_10B_5_16B_10_11B_5_17B_10_12B_5_18B_11_7B_6_13B_11_8B_6_14B_11_9B_6_15B_11_10B_6_16B_11_11B_6_17B_11_12B_6_18B_12_7B_7_13B_12_8B_7_14B_12_9B_7_15B_12_10B_7_16B_12_11B_7_17B_12_12B_7_18B_13_7B_8_13B_13_8B_8_14B_13_9B_8_15B_13_10B_8_16B_13_11B_8_17B_13_12B_8_18C_7_1C_13_1C_7_3C_7_2C_13_2C_7_4C_8_1C_14_1C_8_3C_8_2C_14_2C_8_4C_9_1C_15_1C_9_3C_9_2C_15_2C_9_4C_10_1C_16_1C_10_3C_10_2C_16_2C_10_4C_11_1C_17_1C_11_3C_11_2C_17_2C_11_4C_12_1C_18_1C_12_3C_12_2C_18_2C_12_4TraceMulA_1_9A_3_9A_1_5A_3_5A_1_10A_3_10A_1_6A_3_6A_1_11A_3_11A_1_7A_3_7A_1_12A_3_12A_1_8A_3_8A_1_13A_3_13A_2_9A_4_9A_4_5A_2_5A_2_10A_4_10A_4_6A_2_6A_2_11A_4_11A_2_7A_4_7A_2_12A_4_12A_2_8A_4_8A_2_13A_4_13B_9_7B_9_8B_9_9B_9_10B_9_11B_9_12B_10_7B_10_8B_10_9B_10_10B_10_11B_10_12B_11_7B_11_8B_11_9B_11_10B_11_11B_11_12B_12_7B_12_8B_12_9B_12_10B_12_11B_12_12B_13_7B_13_8B_13_9B_13_10B_13_11B_13_12C_7_1C_13_1C_7_2C_13_2C_8_1C_14_1C_8_2C_14_2C_9_1C_15_1C_9_2C_15_2C_10_1C_16_1C_10_2C_16_2C_11_1C_17_1C_11_2C_17_2C_12_1C_18_1C_12_2C_18_2TraceMulA_1_9A_3_9A_1_4A_3_4A_1_10A_3_10A_1_1A_3_1A_1_11A_3_11A_1_2A_3_2A_1_12A_3_12A_1_3A_3_3A_1_13A_3_13A_2_9A_4_9A_2_4A_4_4A_2_10A_4_10A_2_1A_4_1A_2_11A_4_11A_2_2A_4_2A_2_12A_4_12A_4_3A_2_3A_2_13A_4_13B_9_1B_9_2B_9_3B_9_4B_9_5B_9_6B_10_1B_10_2B_10_3B_10_4B_10_5B_10_6B_11_1B_11_2B_11_3B_11_4B_11_5B_11_6B_12_1B_12_2B_12_3B_12_4B_12_5B_12_6B_13_1B_13_2B_13_3B_13_4B_13_5B_13_6C_1_3C_13_3C_1_4C_13_4C_2_3C_14_3C_2_4C_14_4C_3_3C_15_3C_3_4C_15_4C_4_3C_16_3C_4_4C_16_4C_5_3C_17_3C_5_4C_17_4C_6_3C_18_3C_6_4C_18_4Trace(Mul(Matrix(4, 13, [[A_1_1,A_1_2,A_1_3,A_1_4,A_1_5,A_1_6,A_1_7,A_1_8,A_1_9,A_1_10,A_1_11,A_1_12,A_1_13],[A_2_1,A_2_2,A_2_3,A_2_4,A_2_5,A_2_6,A_2_7,A_2_8,A_2_9,A_2_10,A_2_11,A_2_12,A_2_13],[A_3_1,A_3_2,A_3_3,A_3_4,A_3_5,A_3_6,A_3_7,A_3_8,A_3_9,A_3_10,A_3_11,A_3_12,A_3_13],[A_4_1,A_4_2,A_4_3,A_4_4,A_4_5,A_4_6,A_4_7,A_4_8,A_4_9,A_4_10,A_4_11,A_4_12,A_4_13]]),Matrix(13, 18, [[B_1_1,B_1_2,B_1_3,B_1_4,B_1_5,B_1_6,B_1_7,B_1_8,B_1_9,B_1_10,B_1_11,B_1_12,B_1_13,B_1_14,B_1_15,B_1_16,B_1_17,B_1_18],[B_2_1,B_2_2,B_2_3,B_2_4,B_2_5,B_2_6,B_2_7,B_2_8,B_2_9,B_2_10,B_2_11,B_2_12,B_2_13,B_2_14,B_2_15,B_2_16,B_2_17,B_2_18],[B_3_1,B_3_2,B_3_3,B_3_4,B_3_5,B_3_6,B_3_7,B_3_8,B_3_9,B_3_10,B_3_11,B_3_12,B_3_13,B_3_14,B_3_15,B_3_16,B_3_17,B_3_18],[B_4_1,B_4_2,B_4_3,B_4_4,B_4_5,B_4_6,B_4_7,B_4_8,B_4_9,B_4_10,B_4_11,B_4_12,B_4_13,B_4_14,B_4_15,B_4_16,B_4_17,B_4_18],[B_5_1,B_5_2,B_5_3,B_5_4,B_5_5,B_5_6,B_5_7,B_5_8,B_5_9,B_5_10,B_5_11,B_5_12,B_5_13,B_5_14,B_5_15,B_5_16,B_5_17,B_5_18],[B_6_1,B_6_2,B_6_3,B_6_4,B_6_5,B_6_6,B_6_7,B_6_8,B_6_9,B_6_10,B_6_11,B_6_12,B_6_13,B_6_14,B_6_15,B_6_16,B_6_17,B_6_18],[B_7_1,B_7_2,B_7_3,B_7_4,B_7_5,B_7_6,B_7_7,B_7_8,B_7_9,B_7_10,B_7_11,B_7_12,B_7_13,B_7_14,B_7_15,B_7_16,B_7_17,B_7_18],[B_8_1,B_8_2,B_8_3,B_8_4,B_8_5,B_8_6,B_8_7,B_8_8,B_8_9,B_8_10,B_8_11,B_8_12,B_8_13,B_8_14,B_8_15,B_8_16,B_8_17,B_8_18],[B_9_1,B_9_2,B_9_3,B_9_4,B_9_5,B_9_6,B_9_7,B_9_8,B_9_9,B_9_10,B_9_11,B_9_12,B_9_13,B_9_14,B_9_15,B_9_16,B_9_17,B_9_18],[B_10_1,B_10_2,B_10_3,B_10_4,B_10_5,B_10_6,B_10_7,B_10_8,B_10_9,B_10_10,B_10_11,B_10_12,B_10_13,B_10_14,B_10_15,B_10_16,B_10_17,B_10_18],[B_11_1,B_11_2,B_11_3,B_11_4,B_11_5,B_11_6,B_11_7,B_11_8,B_11_9,B_11_10,B_11_11,B_11_12,B_11_13,B_11_14,B_11_15,B_11_16,B_11_17,B_11_18],[B_12_1,B_12_2,B_12_3,B_12_4,B_12_5,B_12_6,B_12_7,B_12_8,B_12_9,B_12_10,B_12_11,B_12_12,B_12_13,B_12_14,B_12_15,B_12_16,B_12_17,B_12_18],[B_13_1,B_13_2,B_13_3,B_13_4,B_13_5,B_13_6,B_13_7,B_13_8,B_13_9,B_13_10,B_13_11,B_13_12,B_13_13,B_13_14,B_13_15,B_13_16,B_13_17,B_13_18]]),Matrix(18, 4, [[C_1_1,C_1_2,C_1_3,C_1_4],[C_2_1,C_2_2,C_2_3,C_2_4],[C_3_1,C_3_2,C_3_3,C_3_4],[C_4_1,C_4_2,C_4_3,C_4_4],[C_5_1,C_5_2,C_5_3,C_5_4],[C_6_1,C_6_2,C_6_3,C_6_4],[C_7_1,C_7_2,C_7_3,C_7_4],[C_8_1,C_8_2,C_8_3,C_8_4],[C_9_1,C_9_2,C_9_3,C_9_4],[C_10_1,C_10_2,C_10_3,C_10_4],[C_11_1,C_11_2,C_11_3,C_11_4],[C_12_1,C_12_2,C_12_3,C_12_4],[C_13_1,C_13_2,C_13_3,C_13_4],[C_14_1,C_14_2,C_14_3,C_14_4],[C_15_1,C_15_2,C_15_3,C_15_4],[C_16_1,C_16_2,C_16_3,C_16_4],[C_17_1,C_17_2,C_17_3,C_17_4],[C_18_1,C_18_2,C_18_3,C_18_4]]))) = Trace(Mul(Matrix(2, 4, [[A_3_4,A_3_1,A_3_2,A_3_3],[A_4_4,A_4_1,A_4_2,A_4_3]]),Matrix(4, 6, [[B_4_1-B_5_1-B_4_13,B_4_2-B_5_2-B_4_14,B_4_3-B_5_3-B_4_15,B_4_4-B_5_4-B_4_16,B_4_5-B_5_5-B_4_17,B_4_6-B_5_6-B_4_18],[B_1_1-B_6_1-B_1_13,B_1_2-B_6_2-B_1_14,B_1_3-B_6_3-B_1_15,B_1_4-B_6_4-B_1_16,B_1_5-B_6_5-B_1_17,B_1_6-B_6_6-B_1_18],[B_2_1-B_7_1-B_2_13,B_2_2-B_7_2-B_2_14,B_2_3-B_7_3-B_2_15,B_2_4-B_7_4-B_2_16,B_2_5-B_7_5-B_2_17,B_2_6-B_7_6-B_2_18],[B_3_1-B_8_1-B_3_13,B_3_2-B_8_2-B_3_14,B_3_3-B_8_3-B_3_15,B_3_4-B_8_4-B_3_16,B_3_5-B_8_5-B_3_17,B_3_6-B_8_6-B_3_18]]),Matrix(6, 2, [[C_1_1+C_1_3,C_1_2+C_1_4],[C_2_1+C_2_3,C_2_2+C_2_4],[C_3_1+C_3_3,C_3_2+C_3_4],[C_4_1+C_4_3,C_4_2+C_4_4],[C_5_1+C_5_3,C_5_4+C_5_2],[C_6_1+C_6_3,C_6_2+C_6_4]])))+Trace(Mul(Matrix(2, 4, [[A_1_5,A_1_6,A_1_7,A_1_8],[A_2_5,A_2_6,A_2_7,A_2_8]]),Matrix(4, 6, [[-B_4_7+B_5_7-B_5_13,-B_4_8+B_5_8-B_5_14,B_5_9-B_4_9-B_5_15,B_5_10-B_4_10-B_5_16,-B_4_11+B_5_11-B_5_17,-B_4_12+B_5_12-B_5_18],[-B_1_7+B_6_7-B_6_13,-B_1_8+B_6_8-B_6_14,-B_1_9+B_6_9-B_6_15,-B_1_10+B_6_10-B_6_16,-B_1_11+B_6_11-B_6_17,-B_1_12+B_6_12-B_6_18],[-B_2_7+B_7_7-B_7_13,-B_2_8+B_7_8-B_7_14,-B_2_9+B_7_9-B_7_15,-B_2_10+B_7_10-B_7_16,-B_2_11+B_7_11-B_7_17,-B_2_12+B_7_12-B_7_18],[-B_3_7+B_8_7-B_8_13,-B_3_8+B_8_8-B_8_14,-B_3_9+B_8_9-B_8_15,-B_3_10+B_8_10-B_8_16,-B_3_11+B_8_11-B_8_17,-B_3_12+B_8_12-B_8_18]]),Matrix(6, 2, [[C_7_1+C_7_3,C_7_2+C_7_4],[C_8_1+C_8_3,C_8_2+C_8_4],[C_9_1+C_9_3,C_9_2+C_9_4],[C_10_1+C_10_3,C_10_2+C_10_4],[C_11_1+C_11_3,C_11_2+C_11_4],[C_12_1+C_12_3,C_12_2+C_12_4]])))+Trace(Mul(Matrix(2, 5, [[A_1_9,A_1_10,A_1_11,A_1_12,A_1_13],[A_2_9,A_2_10,A_2_11,A_2_12,A_2_13]]),Matrix(5, 6, [[-B_9_7+B_9_13,-B_9_8+B_9_14,-B_9_9+B_9_15,-B_9_10+B_9_16,-B_9_11+B_9_17,-B_9_12+B_9_18],[-B_10_7-B_4_13+B_10_13,-B_10_8-B_4_14+B_10_14,-B_10_9-B_4_15+B_10_15,-B_10_10-B_4_16+B_10_16,-B_10_11-B_4_17+B_10_17,-B_10_12-B_4_18+B_10_18],[-B_11_7-B_1_13+B_11_13,-B_11_8-B_1_14+B_11_14,-B_11_9-B_1_15+B_11_15,-B_11_10-B_1_16+B_11_16,-B_11_11-B_1_17+B_11_17,-B_11_12-B_1_18+B_11_18],[-B_12_7-B_2_13+B_12_13,-B_12_8-B_2_14+B_12_14,-B_12_9-B_2_15+B_12_15,-B_12_10-B_2_16+B_12_16,-B_12_11-B_2_17+B_12_17,-B_12_12-B_2_18+B_12_18],[-B_13_7-B_3_13+B_13_13,-B_13_8-B_3_14+B_13_14,-B_13_9-B_3_15+B_13_15,-B_13_10-B_3_16+B_13_16,-B_13_11-B_3_17+B_13_17,-B_13_12-B_3_18+B_13_18]]),Matrix(6, 2, [[C_13_1,C_13_2],[C_14_1,C_14_2],[C_15_1,C_15_2],[C_16_1,C_16_2],[C_17_1,C_17_2],[C_18_1,C_18_2]])))+Trace(Mul(Matrix(2, 5, [[A_3_9,A_3_10,A_3_11,A_3_12,A_3_13],[A_4_9,A_4_10,A_4_11,A_4_12,A_4_13]]),Matrix(5, 6, [[-B_9_1+B_9_13,-B_9_2+B_9_14,-B_9_3+B_9_15,-B_9_4+B_9_16,-B_9_5+B_9_17,-B_9_6+B_9_18],[-B_10_1-B_5_13+B_10_13,-B_10_2-B_5_14+B_10_14,-B_10_3-B_5_15+B_10_15,-B_10_4-B_5_16+B_10_16,-B_10_5-B_5_17+B_10_17,-B_10_6-B_5_18+B_10_18],[-B_11_1-B_6_13+B_11_13,-B_11_2-B_6_14+B_11_14,-B_11_3-B_6_15+B_11_15,-B_11_4-B_6_16+B_11_16,-B_11_5-B_6_17+B_11_17,-B_11_6-B_6_18+B_11_18],[-B_12_1-B_7_13+B_12_13,-B_12_2-B_7_14+B_12_14,-B_12_3-B_7_15+B_12_15,-B_12_4-B_7_16+B_12_16,-B_12_5-B_7_17+B_12_17,-B_12_6-B_7_18+B_12_18],[-B_13_1-B_8_13+B_13_13,-B_13_2-B_8_14+B_13_14,-B_13_3-B_8_15+B_13_15,-B_13_4-B_8_16+B_13_16,-B_13_5-B_8_17+B_13_17,-B_13_6-B_8_18+B_13_18]]),Matrix(6, 2, [[C_13_3,C_13_4],[C_14_3,C_14_4],[C_15_3,C_15_4],[C_16_3,C_16_4],[C_17_3,C_17_4],[C_18_3,C_18_4]])))+Trace(Mul(Matrix(2, 4, [[A_1_4+A_1_5,A_1_1+A_1_6,A_1_2+A_1_7,A_1_3+A_1_8],[A_2_4+A_2_5,A_2_1+A_2_6,A_2_2+A_2_7,A_2_3+A_2_8]]),Matrix(4, 6, [[B_4_7,B_4_8,B_4_9,B_4_10,B_4_11,B_4_12],[B_1_7,B_1_8,B_1_9,B_1_10,B_1_11,B_1_12],[B_2_7,B_2_8,B_2_9,B_2_10,B_2_11,B_2_12],[B_3_7,B_3_8,B_3_9,B_3_10,B_3_11,B_3_12]]),Matrix(6, 2, [[C_1_1+C_7_1,C_1_2+C_7_2],[C_2_1+C_8_1,C_2_2+C_8_2],[C_3_1+C_9_1,C_3_2+C_9_2],[C_4_1+C_10_1,C_4_2+C_10_2],[C_11_1+C_5_1,C_11_2+C_5_2],[C_6_1+C_12_1,C_6_2+C_12_2]])))+Trace(Mul(Matrix(2, 4, [[A_1_4+A_1_10,A_1_1+A_1_11,A_1_2+A_1_12,A_1_3+A_1_13],[A_2_4+A_2_10,A_2_1+A_2_11,A_2_2+A_2_12,A_2_3+A_2_13]]),Matrix(4, 6, [[B_4_13,B_4_14,B_4_15,B_4_16,B_4_17,B_4_18],[B_1_13,B_1_14,B_1_15,B_1_16,B_1_17,B_1_18],[B_2_13,B_2_14,B_2_15,B_2_16,B_2_17,B_2_18],[B_3_13,B_3_14,B_3_15,B_3_16,B_3_17,B_3_18]]),Matrix(6, 2, [[C_1_1+C_13_1+C_1_3+C_13_3,C_1_2+C_13_2+C_1_4+C_13_4],[C_2_1+C_14_1+C_2_3+C_14_3,C_2_2+C_14_2+C_2_4+C_14_4],[C_3_1+C_15_1+C_3_3+C_15_3,C_3_2+C_15_2+C_3_4+C_15_4],[C_4_1+C_16_1+C_4_3+C_16_3,C_4_2+C_16_2+C_4_4+C_16_4],[C_5_1+C_17_1+C_5_3+C_17_3,C_5_2+C_17_2+C_5_4+C_17_4],[C_6_1+C_18_1+C_6_3+C_18_3,C_6_2+C_18_2+C_6_4+C_18_4]])))+Trace(Mul(Matrix(2, 4, [[A_1_4-A_3_4,A_1_1-A_3_1,A_1_2-A_3_2,A_1_3-A_3_3],[A_2_4-A_4_4,A_2_1-A_4_1,A_2_2-A_4_2,A_2_3-A_4_3]]),Matrix(4, 6, [[B_4_1-B_10_1-B_4_7,B_4_2-B_10_2-B_4_8,B_4_3-B_10_3-B_4_9,B_4_4-B_10_4-B_4_10,B_4_5-B_10_5-B_4_11,B_4_6-B_10_6-B_4_12],[B_1_1-B_11_1-B_1_7,B_1_2-B_11_2-B_1_8,B_1_3-B_11_3-B_1_9,B_1_4-B_11_4-B_1_10,B_1_5-B_11_5-B_1_11,B_1_6-B_11_6-B_1_12],[B_2_1-B_12_1-B_2_7,B_2_2-B_12_2-B_2_8,B_2_3-B_12_3-B_2_9,B_2_4-B_12_4-B_2_10,B_2_5-B_12_5-B_2_11,B_2_6-B_12_6-B_2_12],[B_3_1-B_13_1-B_3_7,B_3_2-B_13_2-B_3_8,B_3_3-B_13_3-B_3_9,B_3_4-B_13_4-B_3_10,B_3_5-B_13_5-B_3_11,B_3_6-B_13_6-B_3_12]]),Matrix(6, 2, [[C_1_1,C_1_2],[C_2_1,C_2_2],[C_3_1,C_3_2],[C_4_1,C_4_2],[C_5_1,C_5_2],[C_6_1,C_6_2]])))+Trace(Mul(Matrix(2, 4, [[A_3_4+A_1_5,A_3_1+A_1_6,A_3_2+A_1_7,A_3_3+A_1_8],[A_4_4+A_2_5,A_4_1+A_2_6,A_4_2+A_2_7,A_4_3+A_2_8]]),Matrix(4, 6, [[B_5_1-B_4_7,B_5_2-B_4_8,B_5_3-B_4_9,B_5_4-B_4_10,B_5_5-B_4_11,B_5_6-B_4_12],[B_6_1-B_1_7,B_6_2-B_1_8,B_6_3-B_1_9,B_6_4-B_1_10,B_6_5-B_1_11,B_6_6-B_1_12],[B_7_1-B_2_7,B_7_2-B_2_8,B_7_3-B_2_9,B_7_4-B_2_10,B_7_5-B_2_11,B_7_6-B_2_12],[B_8_1-B_3_7,B_8_2-B_3_8,B_8_3-B_3_9,B_8_4-B_3_10,B_8_5-B_3_11,B_8_6-B_3_12]]),Matrix(6, 2, [[C_1_1-C_7_3,C_1_2-C_7_4],[C_2_1-C_8_3,C_2_2-C_8_4],[C_3_1-C_9_3,C_3_2-C_9_4],[C_4_1-C_10_3,C_4_2-C_10_4],[C_5_1-C_11_3,C_5_2-C_11_4],[C_6_1-C_12_3,C_6_2-C_12_4]])))+Trace(Mul(Matrix(2, 4, [[A_3_4+A_3_5,A_3_1+A_3_6,A_3_2+A_3_7,A_3_3+A_3_8],[A_4_5+A_4_4,A_4_1+A_4_6,A_4_2+A_4_7,A_4_3+A_4_8]]),Matrix(4, 6, [[B_5_1,B_5_2,B_5_3,B_5_4,B_5_5,B_5_6],[B_6_1,B_6_2,B_6_3,B_6_4,B_6_5,B_6_6],[B_7_1,B_7_2,B_7_3,B_7_4,B_7_5,B_7_6],[B_8_1,B_8_2,B_8_3,B_8_4,B_8_5,B_8_6]]),Matrix(6, 2, [[C_1_3+C_7_3,C_1_4+C_7_4],[C_2_3+C_8_3,C_2_4+C_8_4],[C_3_3+C_9_3,C_3_4+C_9_4],[C_4_3+C_10_3,C_4_4+C_10_4],[C_11_3+C_5_3,C_5_4+C_11_4],[C_6_3+C_12_3,C_6_4+C_12_4]])))+Trace(Mul(Matrix(2, 4, [[A_1_5-A_3_5,A_1_6-A_3_6,A_1_7-A_3_7,A_1_8-A_3_8],[-A_4_5+A_2_5,-A_4_6+A_2_6,A_2_7-A_4_7,A_2_8-A_4_8]]),Matrix(4, 6, [[B_5_1-B_5_7+B_10_7,B_5_2-B_5_8+B_10_8,B_5_3-B_5_9+B_10_9,B_5_4-B_5_10+B_10_10,-B_5_11+B_5_5+B_10_11,B_5_6-B_5_12+B_10_12],[B_6_1-B_6_7+B_11_7,B_6_2-B_6_8+B_11_8,B_6_3-B_6_9+B_11_9,B_6_4-B_6_10+B_11_10,B_6_5-B_6_11+B_11_11,B_6_6-B_6_12+B_11_12],[B_7_1-B_7_7+B_12_7,B_7_2-B_7_8+B_12_8,B_7_3-B_7_9+B_12_9,B_7_4-B_7_10+B_12_10,B_7_5-B_7_11+B_12_11,B_7_6-B_7_12+B_12_12],[B_8_1-B_8_7+B_13_7,B_8_2-B_8_8+B_13_8,B_8_3-B_8_9+B_13_9,-B_8_10+B_8_4+B_13_10,B_8_5-B_8_11+B_13_11,B_8_6-B_8_12+B_13_12]]),Matrix(6, 2, [[C_7_3,C_7_4],[C_8_3,C_8_4],[C_9_3,C_9_4],[C_10_3,C_10_4],[C_11_3,C_11_4],[C_12_3,C_12_4]])))+Trace(Mul(Matrix(2, 4, [[A_3_5+A_3_10,A_3_6+A_3_11,A_3_7+A_3_12,A_3_8+A_3_13],[A_4_5+A_4_10,A_4_6+A_4_11,A_4_7+A_4_12,A_4_8+A_4_13]]),Matrix(4, 6, [[B_5_13,B_5_14,B_5_15,B_5_16,B_5_17,B_5_18],[B_6_13,B_6_14,B_6_15,B_6_16,B_6_17,B_6_18],[B_7_13,B_7_14,B_7_15,B_7_16,B_7_17,B_7_18],[B_8_13,B_8_14,B_8_15,B_8_16,B_8_17,B_8_18]]),Matrix(6, 2, [[C_7_1+C_13_1+C_7_3+C_13_3,C_7_2+C_13_2+C_7_4+C_13_4],[C_8_1+C_14_1+C_8_3+C_14_3,C_8_2+C_14_2+C_8_4+C_14_4],[C_9_1+C_15_1+C_9_3+C_15_3,C_9_2+C_15_2+C_9_4+C_15_4],[C_10_1+C_16_1+C_10_3+C_16_3,C_10_2+C_16_2+C_10_4+C_16_4],[C_11_1+C_17_1+C_11_3+C_17_3,C_11_2+C_17_2+C_11_4+C_17_4],[C_12_1+C_18_1+C_12_3+C_18_3,C_12_2+C_18_2+C_12_4+C_18_4]])))+Trace(Mul(Matrix(2, 5, [[A_1_9,A_1_4-A_3_4+A_1_10,A_1_1-A_3_1+A_1_11,A_1_2-A_3_2+A_1_12,A_1_3-A_3_3+A_1_13],[A_2_9,A_2_4-A_4_4+A_2_10,A_2_1-A_4_1+A_2_11,A_2_2-A_4_2+A_2_12,A_2_3-A_4_3+A_2_13]]),Matrix(5, 6, [[B_9_1,B_9_2,B_9_3,B_9_4,B_9_5,B_9_6],[B_10_1-B_4_13,B_10_2-B_4_14,B_10_3-B_4_15,B_10_4-B_4_16,B_10_5-B_4_17,B_10_6-B_4_18],[B_11_1-B_1_13,B_11_2-B_1_14,B_11_3-B_1_15,B_11_4-B_1_16,B_11_5-B_1_17,B_11_6-B_1_18],[B_12_1-B_2_13,B_12_2-B_2_14,B_12_3-B_2_15,B_12_4-B_2_16,B_12_5-B_2_17,B_12_6-B_2_18],[B_13_1-B_3_13,B_13_2-B_3_14,B_13_3-B_3_15,B_13_4-B_3_16,B_13_5-B_3_17,B_13_6-B_3_18]]),Matrix(6, 2, [[C_1_1+C_1_3+C_13_3,C_1_2+C_1_4+C_13_4],[C_2_1+C_2_3+C_14_3,C_2_2+C_2_4+C_14_4],[C_3_1+C_3_3+C_15_3,C_3_2+C_3_4+C_15_4],[C_4_1+C_4_3+C_16_3,C_4_2+C_4_4+C_16_4],[C_5_1+C_5_3+C_17_3,C_5_4+C_5_2+C_17_4],[C_6_1+C_6_3+C_18_3,C_6_2+C_6_4+C_18_4]])))+Trace(Mul(Matrix(2, 5, [[-A_3_9,A_1_5-A_3_5-A_3_10,A_1_6-A_3_6-A_3_11,A_1_7-A_3_7-A_3_12,A_1_8-A_3_8-A_3_13],[-A_4_9,-A_4_5+A_2_5-A_4_10,-A_4_6+A_2_6-A_4_11,A_2_7-A_4_7-A_4_12,A_2_8-A_4_8-A_4_13]]),Matrix(5, 6, [[-B_9_7,-B_9_8,-B_9_9,-B_9_10,-B_9_11,-B_9_12],[-B_10_7+B_5_13,-B_10_8+B_5_14,-B_10_9+B_5_15,-B_10_10+B_5_16,-B_10_11+B_5_17,-B_10_12+B_5_18],[-B_11_7+B_6_13,-B_11_8+B_6_14,-B_11_9+B_6_15,-B_11_10+B_6_16,-B_11_11+B_6_17,-B_11_12+B_6_18],[-B_12_7+B_7_13,-B_12_8+B_7_14,-B_12_9+B_7_15,-B_12_10+B_7_16,-B_12_11+B_7_17,-B_12_12+B_7_18],[-B_13_7+B_8_13,-B_13_8+B_8_14,-B_13_9+B_8_15,-B_13_10+B_8_16,-B_13_11+B_8_17,-B_13_12+B_8_18]]),Matrix(6, 2, [[C_7_1+C_13_1+C_7_3,C_7_2+C_13_2+C_7_4],[C_8_1+C_14_1+C_8_3,C_8_2+C_14_2+C_8_4],[C_9_1+C_15_1+C_9_3,C_9_2+C_15_2+C_9_4],[C_10_1+C_16_1+C_10_3,C_10_2+C_16_2+C_10_4],[C_11_1+C_17_1+C_11_3,C_11_2+C_17_2+C_11_4],[C_12_1+C_18_1+C_12_3,C_12_2+C_18_2+C_12_4]])))+Trace(Mul(Matrix(2, 5, [[A_1_9-A_3_9,A_1_5-A_3_5+A_1_10-A_3_10,A_1_6-A_3_6+A_1_11-A_3_11,A_1_7-A_3_7+A_1_12-A_3_12,A_1_8-A_3_8+A_1_13-A_3_13],[A_2_9-A_4_9,-A_4_5+A_2_5+A_2_10-A_4_10,-A_4_6+A_2_6+A_2_11-A_4_11,A_2_7-A_4_7+A_2_12-A_4_12,A_2_8-A_4_8+A_2_13-A_4_13]]),Matrix(5, 6, [[B_9_7,B_9_8,B_9_9,B_9_10,B_9_11,B_9_12],[B_10_7,B_10_8,B_10_9,B_10_10,B_10_11,B_10_12],[B_11_7,B_11_8,B_11_9,B_11_10,B_11_11,B_11_12],[B_12_7,B_12_8,B_12_9,B_12_10,B_12_11,B_12_12],[B_13_7,B_13_8,B_13_9,B_13_10,B_13_11,B_13_12]]),Matrix(6, 2, [[C_7_1+C_13_1,C_7_2+C_13_2],[C_8_1+C_14_1,C_8_2+C_14_2],[C_9_1+C_15_1,C_9_2+C_15_2],[C_10_1+C_16_1,C_10_2+C_16_2],[C_11_1+C_17_1,C_11_2+C_17_2],[C_12_1+C_18_1,C_12_2+C_18_2]])))+Trace(Mul(Matrix(2, 5, [[-A_1_9+A_3_9,-A_1_4+A_3_4-A_1_10+A_3_10,-A_1_1+A_3_1-A_1_11+A_3_11,-A_1_2+A_3_2-A_1_12+A_3_12,-A_1_3+A_3_3-A_1_13+A_3_13],[-A_2_9+A_4_9,-A_2_4+A_4_4-A_2_10+A_4_10,-A_2_1+A_4_1-A_2_11+A_4_11,-A_2_2+A_4_2-A_2_12+A_4_12,A_4_3-A_2_3-A_2_13+A_4_13]]),Matrix(5, 6, [[B_9_1,B_9_2,B_9_3,B_9_4,B_9_5,B_9_6],[B_10_1,B_10_2,B_10_3,B_10_4,B_10_5,B_10_6],[B_11_1,B_11_2,B_11_3,B_11_4,B_11_5,B_11_6],[B_12_1,B_12_2,B_12_3,B_12_4,B_12_5,B_12_6],[B_13_1,B_13_2,B_13_3,B_13_4,B_13_5,B_13_6]]),Matrix(6, 2, [[C_1_3+C_13_3,C_1_4+C_13_4],[C_2_3+C_14_3,C_2_4+C_14_4],[C_3_3+C_15_3,C_3_4+C_15_4],[C_4_3+C_16_3,C_4_4+C_16_4],[C_5_3+C_17_3,C_5_4+C_17_4],[C_6_3+C_18_3,C_6_4+C_18_4]])))

N.B.: for any matrices A, B and C such that the expression Tr(Mul(A,B,C)) is defined, one can construct several trilinear homogeneous polynomials P(A,B,C) such that P(A,B,C)=Tr(Mul(A,B,C)) (P(A,B,C) variables are A,B and C's coefficients). Each trilinear P expression encodes a matrix multiplication algorithm: the coefficient in C_i_j of P(A,B,C) is the (i,j)-th entry of the matrix product Mul(A,B)=Transpose(C).

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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