[理工] [工數] PDE

[newtype2007 (無業遊民)]

Find the solution of the wave equation
U_tt=c^2*U_xx
corresponding to the triangular initial deflection
f(x)=2*k*x/L if 0<x<L/2 2*k*(L-x)/L if L/2<x<L
and initial velocity zero


不知該怎下筆，拜託各位了

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