His first lecture was delivered on Nov 4, 1915, and it explained his new approach, though he admitted he did not yet have the precise mathematicalformulation of it.
他在1915年11月4日发表了第一次演讲，演讲解释了他的新方法，尽管他承认他还没有精确的数学公式。
2
The mathematicalformulation of the quantum theory has required the use of imaginary numbers.
量子理论的数学公式需要运用虚数。
3
The mathematicalformulation given can be used for accurate numerical computation and design purposes.