Numerical Methods using Matlab, 2e: e2pg285b.m - File Exchange

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Highlights from
Numerical Methods using Matlab, 2e

F=f302(x);
F=f303(x)
F=f304(x);
F=f305(x);
F=f307(x);
Q=aitken(x,y,xval) Aitken's method for interpolation.
Q=aitken(x,y,xval) Aitken's method for interpolation.
W=romb(func,a,b,d) Implements Romberg integration.
[a,om]=ellipgen(nx,hx,ny,hy,G... Function either solves:
[c1,c2]=lfit(x,y)
[f,a]=golden(func,p,tol) Golden search for finding min of one variable non-linear function.
[fit,fitot]=fitness(criteria,...
[fit,fitot]=fitness2d(criteri...
[fnew,xnew]=asaq(func,x,maxst... Determines optimum of a function using simulated annealing.
[lam,u]=eiginv(A,mu,tol) Determines eigenvalue of A closest to mu with a tolerance tol.
[lam,u]=eigit(A,tol) Solves EVP to determine dominant eigenvalue and associated vector
[r1,r2,im1,im2]=solveq(u,v,n,...
[res, it]=fnewton(func,dfunc,...
[res, it]=fnewtsym(func,x0,to...
[res, it]=schroder(func,dfunc...
[res, noiter]=mincg(f,derf,ft... Finds local mi of a multivariable non-linear function in n variables
[rts,it]=bairstow(a,n,tol) Bairstow's method for finding the roots of a polynomial of degree n.
[tvals, yvals]=abm(f,tspan,st... Adams Bashforth Moulton method for solving
[tvals, yvals]=eulertp(f,tspa... Euler trapezoidal method for solving
[tvals, yvals]=feuler(f,tspan... Euler's method for solving
[tvals, yvals]=fhamming(f,tsp... Hamming's method for solving
[tvals, yvals]=fhermite(f,tsp... Hermite's method for solving
[v, dv]=f509(t,x)
[x1,fr,it]=newtmvsym(x,f,n,to... Newton
[x1,x2]=rootquad(a,b,c)
[xsol,basic]=barnes(A,b,c,tol... Barnes' method for solving a linear programming problem.
[xv,it]=broyden(x,f,n,tol) Broyden's method for solving a system of n non-linear equations
[xv,it]=newtonmv(x,f,jf,n,tol... Newton's method for solving a system of n non-linear equations
[xval,maxf]=optga(fun,range,b... Determines maximum of a function using the Genetic algorithm.
approx=plotapp(func,rangelow,... Plots a function and allows the user to approximate a
b=mregg(Xd,con,ar,lab) Multiple linear regression, using least squares.
chrom1=matesome(chrom,matenum... % Example call: chrom1=matesome(chrom,matenum)
chrom=mutate(chrom,mu)
chromosome=genbin(bitl,numchr...
diffgen(func,n,x,h) Numerical differentiation.
f=f308(v) set f vector to size required by function newtonmv.
filon(func,case,k,l,u,n) Implements filon's integration.
filonmod(func,case,k,l,u,n) Implements filon's integration.
ftauv=ftau2cg(tau);
fv=f301(x)
fv=f306(x);
fv=f401(x)
fv=f402(x)
fv=f403(x)
fv=f404(x)
fv=f405(x)
fv=f504(t,x)
fv=f505(t,x)
fv=f506(t,x)
fv=f601(x,y)
fv=f801(x);
fv=f802(x)
fv=f901(t,x)
gauss2v(func,a,b,c,d,n) Implements 2 variable Gaussian integration.
jf=f309(v) set jf matrix to size required by function newtonmv.
neurf=f507(t,x) Calculate synaptic current
newchrom=selectga(criteria,ch... % Example call: newchrom=selectga(criteria,chrom,a,b)
p=fun1(x) A simple function definition
pd=f801pd(x);
q=f310(p)
q=fgauss(func,a,b,n) Implements Gaussian integration.
q=simp2v(func,a,b,c,d,n) Implements 2 variable Simpson integration.
rkgen.m Runge Kutta methods for solving
rval=binvreal(chrom,a,b) Converts binary string chrom to real value in range a to b.
s=gaherm(func,n) Implements Gauss-Hermite integration.
s=galag(func,n) Implements Gauss-Laguerre integration.
simp1(func,a,b,m) Implements Simpson's rule using vectors.
simp2(func,a,b,m) Implements Simpson's rule using for loop.
u=fwave(nx,hx,nt,ht,init,init... Solves hyperbolic equ'n, e.g. wave equation.
u=heat(nx,hx,nt,ht,init,lowb,... Solves parabolic equ'n.
v=f101(x)
v=f503(t,x)
v=f508(t,y)
v=f510(t,x)
v=f803(x)
v=f804(x)
v=f805(x)
v=jarrett(f,x1,x2,tol)
v=rombergx(f,tspan,intdiv,ini...
w=f412(x,z)
xdash=solvercg(a,b,n,tol) Solves linear system ax = b using conjugate gradient method.
y=f406(x)
y=f407(x)
y=f407a(x)
y=f408(x)
y=f409(x)
y=f410(x)
y=ftable(fname, lowerb,upperb...
y=twopoint(x,C,D,E,F,flag1,fl... Solves 2nd order boundary value problem
yprime=f501(t,y)
yprime=f502(t,y)
z=f411(x,y)
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from Numerical Methods using Matlab, 2e by John Penny
Companion Software

e2pg285b.m
x=1:.2:2; y=ones(size(x))./x; p=polyfit(x,y,5) interpval=polyval(p,1.03); fprintf('interpolated value= %10.8f\n',interpval);

Highlights from Numerical Methods using Matlab, 2e

Highlights from
Numerical Methods using Matlab, 2e