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function [d] = cald(T, y) exec('**/rich.sci', -1) tol = 1e-12 n = size(y, 1) a = zeros(n, 1) b = zeros(n, 1) c = zeros(n, 1) d = zeros(n, 1) u = zeros(n, 1) h = zeros(n, 1) // vecteur l pour contenir la différence y(i+1)-y(i) l = zeros(n, 1) h = T(2:n) - T(1:n-1) l(1:n-1) = y(2:n) - y(1:n-1) // l(n) = 0 car de toute façon c(n) = 0 for i = 1:n-1 if (abs(h(i)) < tol)then error("h(i) trop petit") end // a(1) = 0 a(i+1) = 1 / h(i) // c(n) = 0 c(i) = 1 / h(i) end b = 2 * a(1:n) + 2 * c(1:n) u(1) = l(1) .* c(1) .* c(1) u(2:n) = l(1:n-1) .* (a(2:n).*a(2:n)) + l(2:n) .* (c(2:n).*c(2:n)) d = rich(a, b, c, u) endfunction
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everlasting (like CCCP)