matlab程序設(shè)計(jì)教程第二版資料課后答案(參考版)
2025-06-27 18:59本頁面
【正文】 t39。y(0)=139。x(0)=039。Dy=5*x7*y39。Dx=3*x+4*y39。z39。y39。x39。4*z^2/(4*z^2+1)=x39。4*y^2/(4*y^2+1)=z39。4*x^2/(4*x^2+1)=y39。x39。log(1+x)5/(1+sin(x))=239。taylor(f,x,3,0)syms x f=sin(x)^2。int(f,1,1)7syms ns=symsum(1/4^n,1,inf)sym n。int(f,1,1)sym x。int(f,0,4)sym x。f=1/(asin(x)^2*(1x^2)^(1/2))。f=x+ysqrt(x^2+y^2)。f=x+ysqrt(x^2+y^2)。x39。x39。limit(f,x,inf)4syms x y mf=sqrt(x+sqrt(x+sqrt(x)))。left39。f=abs(x)/x。s4=(4*x^2+8*x+3)/(2*x+1)。s2=sin(B1)*cos(B2)cos(B1)*sin(B2)。x39。Dy(0)=039。y(0)=039。x*(D2y)+(1n)*(Dy)+y=039。)8syms n。,39。,39。,39。)[x y]=solve(39。,39。)x=solve(39。,39。x=solve(39。f2=sqrt(x^32*x+1)。z=symsum(y^(2*y1)/(2*y1),1,Inf)6sym x。,1,exp(1))5sym x。int(f,39。,0,log(2))sym x。int(f,39。)sym x。int(f,39。)syms x y。int(f,39。,2)4sym x。)diff(f,39。diff(f,39。,2)sym x。)diff(f,39。diff(f,39。)3sym x。limit(f,x,1,39。limit(f,x,2)sym x。factor(s)factor(5135)2syms x。)unit8實(shí)驗(yàn)指導(dǎo)1syms x y。,x,gx,39。plot(x,dpx,x,dx,39。dx=diff(f([x,2*pi+]))/。dp=polyder(p)。x=0::2*pi。cos(x)39。)。I=triplequad(f,0,pi,0,pi,0,1)5f=inline(39。4.*x.*z.*exp(z.^2.*yx.^2)39。)。[I,n]=quad(fx,0,1,1e10)(2)format longfx=inline(39。log(1+x)./(1+x.^2)39。y=1./(1+x.^2)。)。 %作圖思考練習(xí)2format longfx=inline(39。39。.39。 %直接對f(x)求數(shù)值導(dǎo)數(shù)gx=g(x)。dpx=polyval(dp,x)。p=polyfit(x,f(x),5)。)。g=inline(39。sin(x)./(x+cos(2.*x))39。trapz(X,F)4p=0:pi/5:2*pi。I=dblquad(f,0,pi,0,pi)3X=::。y39。x39。abs(cos(x+y))39。ki=0。)。[I,n]=quadl(fx,0,2,1e10)（2）format longfx=inline(39。sin(x)./x39。fx=(9*x+4*x.^312*x.^2)。5[x,y1]=fminbnd(mymax,0,)。4x=fminbnd(mymin,0,pi)。ydot(3)=y(2)。ydot(1)=cos(t)y(3)./(3+sin(t))+5*y(1).*cos(2*t)/((t+1).^2)y(2)。[t,y]=ode45(vdpoll,[t0,tf],y0)。0。tf=5。ydot=ydot39。ydot(1)=(23*y(2)2*t*y(1))./(1+t^2)。[t,y]=ode45(vdpol,[t0,tf],y0)。tf=5。q(2)=x+y1。y=p(2)。x=fsolve(fun3,[3,0]39。off39。Display39。（2）x1=fzero(funx2,1)function fx=funx2(x)fx=x1/x+5。C1=inv(A)*BC2=A\B[L,U]=lu(A)。3,9,0,2]。9,1,4,1。C1=inv(A)*BC2=A\B[L,U]=lu(A)。1,7,1]。思考練習(xí)1（1）A=[2,3,5。)
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