w 1 ( a , x ) = e - 1 4 i x 2 M ( 1 4 - 1 2 i a , 1 2 , 1 2 i x 2 ) = e 1 4 i x 2 M ( 1 4 + 1 2 i a , 1 2 , - 1 2 i x 2 ) w_{1}(a,x)=e^{-\frac{1}{4}ix^{2}}M\left(\tfrac{1}{4}-\tfrac{1}{2}ia,\tfrac{1}{2},\tfrac{1}{2}ix^{2}\right)=e^{\frac{1}{4}ix^{2}}M\left(\tfrac{1}{4}+\tfrac{1}{2}ia,\tfrac{1}{2},-\tfrac{1}{2}ix^{2}\right)