In mathematics, particularly within the study of arithmetic sequences, a constant value exists that represents the disparity between any two successive terms. This fixed number is obtained by subtracting any term from its direct successor. For example, in the sequence 2, 5, 8, 11, 14, the constant value is 3, as each term is 3 greater than the term preceding it. This consistent additive relationship defines the sequence as arithmetic.
This characteristic is fundamental to understanding and working with arithmetic progressions. It allows for the prediction of future terms within a sequence, and the calculation of the sum of a finite number of terms. Historically, the recognition and application of these regular patterns have been crucial in various fields, from basic counting and measurement to more advanced areas such as financial calculations and modeling linear growth.