Adding two sine waves of different frequencies - matlab

1. How do you add two sine waves in Matlab?
2. Can two waves with different frequencies be added together?

How do you add two sine waves in Matlab?

So you could add this code:

1. % Take spectrum and plot it.
2. spectrum = fft(signal);
3. numElements = length(spectrum)
4. indexOf0 = numElements / 2.
5. shiftedSpectrum = fftshift(abs(spectrum));
6. subplot(2, 1, 2);
7. f = (1 / sampleTime) * linspace(-numElements/2, numElements/2, numElements);
8. % Make bolder y axis.

Can two waves with different frequencies be added together?

This wave fluctuates in amplitude, or beats, with a frequency called the beat frequency. We can determine the beat frequency by adding two waves together mathematically. ... Adding two waves that have different frequencies but identical amplitudes produces a resultant x = x₁ + x₂.