How can I plot two functions in the same graph?
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Íris
el 17 de Sept. de 2014
Comentada: Raul Galdeano Pazos
el 19 de Feb. de 2022
I have to show that the functions f(x)=x/10 and g(x)=cos(x) intersect at least twice the range [-3,3]. Can anybody help me?
1 comentario
Raul Galdeano Pazos
el 19 de Feb. de 2022
Hi Íris!
In my view, there are two ways of tackling this problem. Firstly, doing this;
%------------------------------------------------------------------------------------------------------------------------------------------------------------
x = -3:0.1:3;
y1 = x/10;
y2 = cos(x);
%Firstly, just plot one single function;
figure(1)
plot(x,y1,"r-","Linewidth",2);
hold on
%Then, plot the rest of the functions;
plot(x,y2,"b-","Linewidth",2);
I think this way of plotting, despite having more lines of code, works too!
I hope this could help you!
R.G.
Respuesta aceptada
Mischa Kim
el 17 de Sept. de 2014
Iris, use
x = -3:0.1:3;
f = x./10;
g = cos(x);
plot(x,f,x,g)
4 comentarios
Shubhashree Bal
el 19 de Feb. de 2018
how can someone plot two graphs with different baseline on single graph plot?
rockstar49
el 25 de Oct. de 2020
Using this way to plot multiple functions, how can you use the legend on function to differenitate between each line?
Más respuestas (3)
Aayushii Goswami
el 21 de Oct. de 2017
I have to sketch the graph of y^2=8x and x^2=8y on the same axis system and shade the bounded area.can anyone pls help me?
0 comentarios
Realeboha Ramoeletsi
el 9 de Jul. de 2021
t=linspace(0.2,50,100);
alpha=0.5;
c1=2;
r=0.2;
sigma=0.25;
Nt=1600;
Ns=160;
Smax=20;
Smin=0;
T=1.;
E=10;
dt=(T/Nt);
ds=(Smax-Smin)/Ns;
V(1:Ns+1,1:Nt+1)=0.0;
S=Smin+(0:Ns)*ds;
tau=(0:Nt)*dt;
V(1:Ns+1,1)=max(S-E,0);
V(1,1:Nt+1)=0;
V(Ns+1,1:Nt+1)=Smax-E*exp(-r*tau);
y1=C(t,alpha,c1);
figure(1)
plot (S,V(:,1),'r-',S,V(:,round(Nt/2)),'g-',S,V(:,Nt+1),'b-');
plot(t,y1,'-r')
xlabel('S')
ylabel('V(S,tau)')
for j=1:Nt
for n=2:Ns
V(n,j+1)=0.5*dt*(sigma*sigma*n*n-r*n)*V(n-1,j)+(1-dt*(sigma*sigma*n*n+r))*V(n,j)+0.5*dt*(sigma*sigma*n*n+r*n)*V(n+1,j);
end
end
function y=C(t,alpha,c1)
if ~all(t>0)
error(" t values must be positive")
end
if alpha<0 || alpha>1
error("alpha must be in the range (0,1) excluding both ends")
end
y=c1*t.^(alpha-1)./gamma(alpha);
end
i have two functions y and V and i did plot them separately one on its plot, so i am having a problem on ploting the same fuctions in one figure, can someone help me please. thank you.
i have attached .m file
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