Contact us
Choose a category below so we can get back to you as quickly as possible.
사용 가능 한 누적 법 f(X+1)-f(X)=2 X 는 f(X)-f(X-1)=2(X-1),f(X-1)-f(X-2)=2(X-2).
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.