Ai⁡(z)=12⁢π⁢ⅈ⁢∫∞⁢ⅇ-π⁢ⅈ/3∞⁢ⅇπ⁢ⅈ/3exp⁡(13⁢t3-z⁢t)⁢ⅆ⁡t,