等差級数とは、任意の2つの連続する項の差が一定である数列のことです。
Don't trifle with the matter.
An arithmetic series is a sequence of numbers in which the difference between any two consecutive terms is constant.
The decorations at the party were over-the-top.
Don't have an account? Sign up
Do you have an account? Login
DiQt
Free
★★★★★★★★★★
