∑j=anf⁡j=∫anf⁡x⁢ⅆ⁡x+12⁢f⁡a+12⁢f⁡n-2⁢∫0∞ℑ⁡f⁡a+ⅈ⁢yⅇ2⁢π⁢y-1⁢ⅆ⁡y+∑s=1mB2⁢s2⁢s!⁢f2⁢s-1⁡n+2⁢-1m2⁢m!⁢∫0∞ℑ⁡f2⁢m⁡n+ⅈ⁢ϑn⁢y⁢y2⁢m⁢ⅆ⁡yⅇ2⁢π⁢y-1,