Is there a standard compact form for extended ratios, perhaps resembling the following?
$$ Q_{n=1}^5(z_n)=z_1:z_2:z_3:z_4:z_5 $$
Is there a standard compact form for extended ratios, perhaps resembling the following?
$$ Q_{n=1}^5(z_n)=z_1:z_2:z_3:z_4:z_5 $$
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