Numerical+Methods 源代码

function T4=taylor(df,a,b,ya,M) %Input - df=[y' y'' y''' y'''']entered as a string 'df' % where y'=f(t,y) % - a…

function quad=gauss(f,a,b,A,W) %Input - f is the integrand input as a string 'f' % - a and b upper and lower limits of i…

function M=milne(f,T,Y) %Input - f is the function entered as a string 'f' % - T is the vector of abscissas % - Y…

function L=ls(F1,F2,a,b,alpha,beta,M) %Input - F1 and F2 are the systems of first-order equations % representing the …

function L=linsht(F1,F2,a,b,alpha,beta,M) %Input - F1 and F2 are the systems of first-order equations % representing …

function X=trisys (A,D,C,B) %Input - A is the sub diagonal of the coefficient matrix % - D is the main diagonal of the coeff…

function [A,B]=tpcoeff(X,Y,M) %Input - X is a vector of equally spaced abscisssas in [-pi, pi] % - Y is a vector of or…

NUMERICAL METHODS: Matlab Programs (c) 2004 by John H. Mathews and Kurtis D. Fink Complementary Software to accompany the textbo…

function U=dirich(f1,f2,f3,f4,a,b,h,tol,max1) %Input - f1,f2,f3,f4 are boundary functions input as strings % - a and b right…

function U=crnich(f,c1,c2,a,b,c,n,m) %Input - f=u(x,0) as a string 'f' % - c1=u(0,t) and c2=u(a,t) % - a and b right en…