| − | A '''Cauchy sequence''' is an infinite series of numbers that approach some other number. These sequences are often used in [[real analysis]]. For example, the sequence 1/2, 1/4/, 1/8/, 1/16, 1/32... is a Cauchy sequence that approaches 0. | + | A '''Cauchy sequence''' is an infinite series of numbers that approach some other number. These sequences are often used in [[real analysis]]. For example, the sequence 1/2, 1/4, 1/8, 1/16, 1/32... is a Cauchy sequence that approaches 0. |