I need to plot a sine wave
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I need to plot a sine wave with a frequency of 15 amplitude of 4 time of 0:0.1:1 how do i go about this, thanks :-)
3 个评论
Jan
2016-11-17
Please use meaningful tags only.
Subhranil Barman
2021-1-13
Write a MATHLAB code to generate a CT step signal with peak Amplitude of 5 Volts and should be plotted on the time scale from 0 to 1000.
Rik
2021-1-13
That comment sounds like a homework question. You can find guidelines for posting homework on this forum here. If you have trouble with Matlab basics you may consider doing the Onramp tutorial (which is provided for free by Mathworks). You may also consider re-reading the material you teacher provided and ask them for further clarification.
采纳的回答
Geoff Hayes
2016-11-17
t = 0:0.01:1;
f = 15;
a = 4;
y = a*sin(2*pi*f*t);
plot(t,y);
Though ten samples (your t) may not be enough to accurately represent the sine wave (that you are attempting), so try
Fs = 1000;
t = linspace(0,1-1/Fs,Fs);
f = 15;
a = 4;
y = a*sin(2*pi*f*t);
plot(t,y);
更多回答（4 个）
Junyoung Ahn
2020-6-16
clear;
clc;
close;
f=15; %frequency [Hz]
t=(0:1/(f*100):1);
a=4; %amplitude [V]
phi=0; %phase
y=a*sin(2*pi*f*t+phi);
plot(t,y)
xlabel('time(s)')
ylabel('amplitude(V)')
Jos (10584)
2016-11-17
This is the general formula of a sine wave. If leave it to you to fill in the numbers.
y = Amplitude * sin(2*pi*f*t + phase)
cesar moreno
2021-2-4
0 个投票
If you need to load the generated data into an array of length N
then,
int k (the index of the array)
int N (the number of points in the data array)
The ARRAY holds values of type FLOAT example: array is called data[N] each location is a FLOAT
y = Amplitude * sin(2*pi*f*t + phase)
for k = 0 to N (load one location at a time)
data[k] = Amplitude * sin( ((2*pi*f*k)/N) + phase )
Aishwarya Gobade
2023-1-13
clear;
clc;
close;
f=15; %frequency [Hz]
t=(0:1/(f*100):1);
a=4; %amplitude [V]
phi=0; %phase
y=a*sin(2*pi*f*t+phi);
plot(t,y)
xlabel('time(s)')
ylabel('amplitude(V)')
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