文档介绍：数学实验答案Chapter1Page20,ex1(5)等于[exp(l),exp(2);exp⑶,exp⑷]⑺3=1*3,8=2*4⑻a为各列最小值,b为最小值所在的行号1>=4,false,2>=3,false,3>=2,ture,4>=1,ture答案表明:编址第2元索满足不等式(30>=20)和编址第4元索满足不等式(40>=10)答案表明:编址第2行第1列元素满足不等式(30>=20)和编址第2行第2列元素满足不等式(40>=10)Page20,ex2⑴a,b,c的值尽管都是1,但数据类型分别为数值,字符,逻辑,注意a与c相等,但他们不等于b(2)double(fun)输出的分别是字符a,b,s,(,x,)的ASCII码Page20,ex3»r=2;p=;n=12;»T=log(r)/n/log(1+*p)Page20,ex4»x=-2::2;f=-;»[fmin,min_index]=min(f)最小值最小值点编址»x(min_index)ans=»[f1,x1_indexj=min(abs(f))求近似根■■绝对值最小的点fl==24»x(xl_index)ans=-»x(xl_index)=[];f=-;删去绝对值最小的点以求函数绝对值次小的点»[f2,x2_index]=min(abs(f))求另一近似根-函数绝对值次小的点f2==65»x(x2_indcx)ans=,ex5»z=magic(10)z=9299181567745158409880714167355576441481882022545663704787192136062697128932529616875523417247683904249263365235828991483032396679613959729313845721294967835374446531810077843643502759»sum(z)»sum(diag(z))»z(:,2)/sqrt(3)»z(8,:)=z(&:)+z(3,:)Chapter2Page45ex1先在编辑器窗口写下列M函数,[xbar,s]=ex2_l(x)n=length(x);xbar=sum(x)/n;s=sqrt((sum()-n*xbarA2)/(n-1));例如»x=[81706551766690876177];»[xbar,s]=ex2_l(x)Page45ex2s=log(l);n=0;whiles<=10()n=n+l;s=s+log(l+n);endm=nPage40ex3clear;F(l)=l;F(2)=l;k=2;x=0;e=le-8;a=(l+sqrt(5))/2;whileabs(x-a)>ek=k+1;F(k)=F(k-1)+F(k・2);x=F(k)/F(k-1);enda,x,k计算至k=21可满足精度Page45ex4clcar;tic;s=O;fori=l:1000000s=s+sqrt(3)/2Ai;ends,toctic;s=0;i=l;whilei<=1000000s=s+sqrt(3)/2Ai;i=i+1;ends,toctic;s=0;i=1:1000000;s=sqrt(3)*sum(1./2,Ai);s,tocPage45ex5t=0:24;c=[15141414141516182022232528...313231292725242220181716J;plot(t,c)Page45ex6(1)x=-2::2;y=.*sin(-x-2);plot(x,y)y=inline('xA2*sin(xA2-x-2),);fplot(y,[-22J)(2)参数方法t=linspace(0,2*pi,100);x=2*cos(t);y=3*sin(t);plot(x,y)⑶x=・3:0」:3;y=x;[x,y]=meshgrid(x,y);z=+;surf(x,y,z)⑷x=・3:0」:3;y=・3::13;[x,y]=meshgrid(x,y);z=+3*+-2*x-2*y-2*.*y+6;surf(x,y,z)⑸t=0::2*pi;x=sin(t);y=cos(t);z=cos(2*t);plot3(x,y,z)⑹theta=linspace(0,2*pi,50);fai=linspace(0,pi/2,20);[theta,faij=meshgrid(theta,f