how to plot sine and cosine waves in one graph ?
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Osama Abbas
am 28 Sep. 2012
Kommentiert: Walter Roberson
am 7 Apr. 2022
used for academic use
5 Kommentare
Walter Roberson
am 7 Apr. 2022
syms x b
a = randn()
f = cos(a*x + b);
fsurf(f, [-10 10 -2*pi 2*pi])
xlabel('x'); ylabel('b')
Akzeptierte Antwort
Wayne King
am 28 Sep. 2012
It sounds like the OP wants this in one graph (not subplotted)
t = 0:0.01:(2*pi);
x = cos(t);
y = sin(t);
plot(t,x,'k'); hold on;
plot(t,y,'r-.');
axis([0 2*pi -1.5 1.5])
legend('cos(t)','sin(t)','Location','NorthEast')
2 Kommentare
Weitere Antworten (4)
Sabarinathan Vadivelu
am 28 Sep. 2012
a = 10;
t = 0 : 0.01 : 10;
A = a*sin(t);
subplot(121),plot(t,A);
B = a*cos(t);
subplot(122),plot(t,B);
3 Kommentare
Walter Roberson
am 1 Feb. 2021
subplot 121 is archaic, no longer documented, but still works. It is interpreted as subplot(1, 2, 1)
Abdullah Rajput
am 19 Aug. 2020
close all; clear all; clc;
t=[0:0.5:180]
x=sind(t);
plot(t,x),hold on
y=cosd(t);
plot(t,y)
legend('Sine wave','Cos wave')
0 Kommentare
Konstantin Kuzminov
am 11 Mär. 2021
hold on not needed
x=0:0.1:2*pi;
plot(x,sin(x),"b",x,cos(x),"g");
"b" and "g" - color
4 Kommentare
Walter Roberson
am 12 Mär. 2021
I would not normally have mentioned a backwards compatibility like that now that we are 4 years on, but I suspect this question is getting read by people who are using old versions of MATLAB. (We are getting a rush of people using MATLAB from 2013 and 2015.)
Konstantin Kuzminov
am 13 Mär. 2021
You are absolutely right. This is very useful information, because not everyone has the latest versions, they are not required for simple tasks. Correct syntax - 50% success.
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