1, such as a list of numbers: 1, 4, 7, 10, so that the difference between every two numbers is 3, and 3 is the tolerance.

2. The difference (or absolute value) between two adjacent terms in an arithmetic series. Arithmetic progression refers to the sequence of the same constant whose difference between each term and the previous term is equal to the second term, usually expressed by a and p ... This constant is called arithmetic progression's tolerance, often expressed by the letter D.