w1⁡(a,x)=ⅇ-14⁢ⅈ⁢x2⁢M⁡(14-12⁢ⅈ⁢a,12,12⁢ⅈ⁢x2)=ⅇ14⁢ⅈ⁢x2⁢M⁡(14+12⁢ⅈ⁢a,12,-12⁢ⅈ⁢x2),