in Arithmetic, signifies that part of an infinite decimal fraction, which is continually repeated ad infinitum. Thus in the numbers $2.\overline{13}$, $\overline{13}$, etc., the figures $\overline{13}$ are the repetend and marked thus $1\overline{3}$. These repetends chiefly arise in the reduction of vulgar fractions to decimals. Thus, $\frac{7}{20}=0.35$, etc.