Winograd Multiplication
Winograd Multiplication
V=(v1,v2,v3,v4)
W=(w1,w2,w3,w4)
V·W=v1w1+v2w2+v3w3+v4w4
V·W=(v1+w2)(v2+w1) + (v3+w4)(v4+w3) -v1v2-v3v4-w1w2-w3w4
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