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A comment on Light computes any desired linear transform without a digital processor. Parent comment

Re:Light computes any desired linear transform without a dig... by tromp on Monday September 27, 2021 @01:13PM (#28673383)
Yes, since it's nonzero on zero inputs, while a linear function satisfies f(0,0) = f(0 * (x,y)) = 0 * f(x,y) = 0.
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