一类特殊初值柯西问题的简易解法

The Simple Solution for Cauchy Problem with Specific Initial Conditions

通过对初始条件为平面波的三维波动方程柯西问题的研究,利用变量变换,将三维波动方程柯西问题转化为一维波动方程柯西问题,以利用达朗贝尔公式来求解,从而避开了使用复杂的泊松公式.

Using the variable transformation,changes the three-dimensional wave equation which has the plane wave initial condition into one-dimensional wave equation which can be solved by D＇Alembert formula.