function chap2_fdm_elliptic_1D % 一维椭圆方程求解(常微分方程边值问题) % -u'' + q(x)u = f(x), 0<x<1, 取q(x) = x, f(x) = (x-1)exp(x) % u(0) = 1, u(1) = e; ...
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