Warning: file_put_contents(/www/wwwroot/ppbbu/bieo.cn/cache/f6eedb202a86e29fee3fd1b18c261382.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/bieo.cn/index.php on line 58 summation of arithmetic progression是什么意思，summation of arithmetic progression的翻译，summation of arithmetic progression音标、读音、用法和例句_衣物护欧路词典
The formula of finite summation of K Steps arithmetic progression is seeked out by using the summation function of power series. 用幂级数和函数的思想来给出阶等差数列求有限和的公式。