Analytical Solution for the two-dimensional wave equation, separation of variables

The second step is to solve these differential equations, which all have trigonometric functions as solutions, viz. $$\begin{equation*} H(x) = A\cos(\kappa x)+B\sin(\kappa x), \end{equation*}$$ and $$\begin{equation*} Q(y) = C\cos(\rho y)+D\sin(\rho y). \end{equation*}$$

• «
• 1
• ...
• 86
• 87
• 88
• 89
• 90
• 91
• 92
• 93
• 94
• 95
• 96
• 97
• 98
• »