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Plotting Sinusoidal Wave Graph on MatLab

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cikalekli on 25 May 2021
Commented: William Rose on 25 May 2021
I want to plot the graph of this sinusoidal equation on matlab but I could not accomplished right...
Here is my sinusoidal wave equation:
v(t) = 5cos(1256t - pi/4)

Accepted Answer

William Rose
William Rose on 25 May 2021
Start by figuring out a good time range. Since you have cos(1256t-pi/4), the period is , so let's plot for two periods, i.e. time=0 to 0.01:
t=0:.0005:0.01; %create vector of time values, with step size=0.0005
x=5*cos(1256*t-pi/4); %compute x(t)
plot(t,x,'r.-') %plot
Try it.

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