北科大數(shù)學(xué)實(shí)驗(yàn)報(bào)告全

PAGEPAGE4《數(shù)學(xué)實(shí)驗(yàn)》報(bào)告實(shí)驗(yàn)名稱

MATLAB基礎(chǔ)知識(shí)學(xué)院專業(yè)班級(jí)

姓

名

學(xué)

號(hào)

2013年5月【實(shí)驗(yàn)?zāi)康摹繉W(xué)會(huì)用MATLAB繪制二維曲線、三維曲線、三維曲面，掌握gtext,legend,title,xlabel,ylabel等指令用法?！緦?shí)驗(yàn)任務(wù)】P343P791,3,5【實(shí)驗(yàn)程序】P34第3題n=1;sum=0;whilen<=50;sum=sum+prod(1:n);n=n+1;endsumP79第1題x=0:pi/50:4*pi;y1=exp(x/3).*sin(3*x);y2=exp(x/3);y3=-exp(x/3);plot(x,y1,'b*'),holdonplot(x,y2,'r-.',x,y3,'r-.'),gridonP79第3題x1=-pi:pi/100:pi;y1=x1.*cos(x1);x2=pi:pi/100:4*pi;y2=x2.*tan(1./x2).*sin(x2.^3);x3=1:0.1:8;y3=exp(1./x3).*sin(x3);subplot(131),plot(x1,y1,'rp'),gridonaxistighttitle('y1=x1cosx1')xlabel('x?á'),ylabel('y?á')gtext('y1=x1cosx1')legend('y1=x1cosx1')subplot(132),plot(x2,y2,'c-'),gridonaxistighttitle('y2=x2tan(1/x2)sin(x2^3)')xlabel('x?á'),ylabel('y?á')gtext('y2=x2tan(1/x2)sin(x2^3)')legend('y2=x2tan(1/x2)sin(x2^3)')subplot(133);plot(x3,y3,'mx'),gridonaxistighttitle('y3=e^(1/x3)sin(x3)')xlabel('x?á'),ylabel('y?á')gtext('y3=e^(1/x3)*sin(x3)')legend('y3=e^(1/x3)sin(x3)')P79第5題t=0:pi/50:20*pi;x=t.*cos(pi/6.*t);y=t.*sin(pi/6.*t);z=2*t;plot3(x,y,z),gridonxlabel('x?áx=tcos(pi/6t)')ylabel('y?áy=tsin(pi/6t)')zlabel('z?áz=2t')title('?2×??Y??￡¨0t20pi￡?')legend('?2×??Y??')【實(shí)驗(yàn)結(jié)果】P34第3題P79第1題P79第3題P79第5題【實(shí)驗(yàn)總結(jié)】上課