3、(math) a progression of terms whose reciprocals form an arithmetic progression.
6、Some special patterns of annuity changes whose payments are of the arithmetic progression of higher order or of the reverse rainbow are studied, and their beginning values and ending values are given.
2、What is the arithmetic progression?
7、It has been proved that the primes contain arbitrarily long arithmetic progressions.
5、The result shows that the utility of the arithmetic progression can limit the first kind of misread.
1、theorem of arithmetic progression
4、1-4-7-10-13- is the start of an arithmetic progression.
