泰勒级数 CN+1=NCN+1(CN+1)N+1−(N+1)CN+1N+1C_{N+1}=\frac{NC_N+1(C_N+1)}{N+1}-\frac{(N+1)C_N+1}{N+1}CN+1​=N+1NCN​+1(CN​+1)​−N+1(N+1)CN​+1​ Center of mass of N+1 blocks X-coordinate CN+1=CN+1N+1C_{N+1}=C_N+\frac{1}{N+1}CN+1​=CN​+N+11​ C1=1C_1=1C1​=1 C2=1+12