Plan Omega to Alpha - POA

연습문제 a=60; h=15; R=@(x ) sqrt(1+(4*h.^2./a.^4).*x.^2); inte=quad(R,0,a) ans=inte*2

연습문제 a=60; h=15; R=@(x ) sqrt(1+(4*h.^2./a.^4).*x.^2); inte=quad(R,0,a) ans=inte*2

연습문제 c=3.0*10^8; h=6.63*10^-34; k=1.38*10^-23; T=1500; R=@(lamda ) (2*pi*(c^2)*h)/(lamda^5)*1/(exp((h*c)/(lamda*k*T))-1); fplot(R,linspace(0.2*10^-6, 6.0*10^-6,100)); fminbnd(R,0.2*10^-6,6.0*10^-6)

연습문제 m=18; h=10; u=0.55; g=9.81; f=90; x=linspace(-10,10,100); y=((u.*m.*g.*sqrt(x.^2+h.^2))./(x+u.*h))-f; plot(x,y) ans=fzero(func,0) func=@(x ) ((u*m*g*sqrt(x^2+h^2))/(x+u*h))-f

연습문제 x=linspace(-5,5,100) y=exp(-0.2.*x).*cos(2.*x)-0.15.*(x.^2)+1 plot(x,y) p=@(x ) exp(-0.2*x)*cos(2*x)-0.15*(x^2)+1 f=[fzero(p,-4),fzero(p,-2),fzero(p,-1),fzero(p,1),fzero(p,2),fzero(p,3)]

익명함수 ODEexp1=@(t,v) ODEexp1=@(t,v ) -0.0035*(v^2)-3; [t v]=ode45(ODEexp1, [0:0.1:14.3], 300); xtotal=trapz(t,v) x=0; for k=1:1:144;     x=x+v(k)*0.1;     X(k)=x; end plot(t,X); xlabel('시간(t)'); ylabel('거리(x)'); title('시간에 따른 거리 그래프');