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| KASH3 Reference Manual

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### Function

Index ( seq() S, any x, elt-ord^rat f ) -> elt-ord^rat

### Description

<shortdoc> The index of x in S from f (i.e. the smallest integer i >= f such that S[i] equals x), 0 if x is not in that portion of S. </shortdoc>

### Examples

x_s:= Sequence([5,3,8,2]);Index(x_s,3,3);

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