KASH3 Ref - RowSubmatrixRange

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| ### Function RowSubmatrixRange ( elt-alg^mat X, elt-ord^rat i, elt-ord^rat j ) -> elt-mdl^mat ### Description The submatrix of X consisting of the (i - j + 1) rows [i .. j]. ### Examples x_m := Matrix(Z,2,2,[2,-3,5,7]); RowSubmatrixRange(x_m, 1, 1); RowSubmatrixRange(x_m, 2, 2);
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