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== History == | == History == | ||
Inner product appeared in early [[Iverson Notation]] as <math>^f_g</math> and applied even to non-[[scalar function]]s, like [[Compress]], Iverson bringing:<ref>[[Ken Iverson]]. [[A Programming Language]. §1.11 ''The language''.</ref> | Inner product appeared in early [[Iverson Notation]] as <math>^f_g</math> and applied even to non-[[scalar function]]s, like [[Compress]], Iverson bringing:<ref>[[Ken Iverson]]. [[A Programming Language]]. §1.11 ''The language''.</ref> | ||
:<math> | :<math> | ||
\begin{align} | \begin{align} |