Find the Leapfrog and Lax-Wendroff schemes for the wave equation and compute their Neumann stability condition. The FTCS, Lax-Friedrich, Leapfrog and Lax-Wendroff schemes are all explicit schemes and require the CFL condition for stability. In fact all explicit schemes re- quire the CFL condition and this was proven by Courant, Friedrich and Levy (1928): mes for hunerbolic Find the Leapfrog and Lax-Wendroff schemes for the wave equation and compute their Neumann stability condition. The FTCS, Lax-Friedrich, Leapfrog and Lax-Wendroff schemes are all explicit schemes and require the CFL condition for stability. In fact all explicit schemes re- quire the CFL condition and this was proven by Courant, Friedrich and Levy (1928): mes for hunerbolic