A=2; t = 0:0.0005:1;
x=A*sawtooth(2*pi*5*t,0.25); %5 Hertz wave with duty cycle 25%
plot(t,x);
grid
axis([0 1 -3 3]);
The above code can generate sine wave using Matlab.
Generating Sine and Cosine Signals (Use updated lab)
By shifting the sine wave by 45 degrees.
The code below can generate triangular wave in Matlab. A=2; t = 0:0.0005:1; x=A*sawtooth(2*pi*5*t,0.25); %5 Hertz wave with duty cycle 25% plot(t,x); grid axis([0 1 -3 3]);
Do you mean "How do sine waves generate ?" Or perhaps you mean "How are sine waves generated?" Or something else, perhaps? No one can answer a question that is incomprehensible.
it is DC powered, but can generate sawtooth or triangular wave AC if wired up properly. it cannot generate sine wave AC, although with an opamp wave shaping circuit the triangular AC waveform can be reshaped to a rough approximation of a sine wave.
The below code in Matlab can generate a square wave. fs = 1000; t = 0:1/fs:1.5; x1 = sawtooth(2*pi*50*t); x2 = square(2*pi*50*t); subplot(2,2,1),plot(t,x1), axis([0 0.2 -1.2 1.2]) xlabel('Time (sec)');ylabel('Amplitude'); title('Sawtooth Periodic Wave') subplot(2,2,2),plot(t,x2), axis([0 0.2 -1.2 1.2]) xlabel('Time (sec)');ylabel('Amplitude'); title('Square Periodic Wave'); subplot(2,2,3),stem(t,x2), axis([0 0.1 -1.2 1.2]) xlabel('Time (sec)');ylabel('Amplitude'); The resultant wave has an amplitude of +1 to -1.
To plot a sine wave on a Mac, you can use software like Python with libraries such as Matplotlib. First, ensure you have Python installed, then use the following code: import numpy as np import matplotlib.pyplot as plt x = np.linspace(0, 2 * np.pi, 100) y = np.sin(x) plt.plot(x, y) plt.title('Sine Wave') plt.xlabel('Angle (radians)') plt.ylabel('Sine value') plt.grid() plt.show() Run this code in a Python environment to visualize the sine wave.
The Fourier transform of a sine wave is a pair of delta functions located at the positive and negative frequencies of the sine wave.
A sine wave is the graph of y = sin(x). It demonstrates to cyclic nature of the sine function.
The voice is not a sine wave.
Sine wave is considered as the AC signal because it starts at 0 amplitude and it captures the alternating nature of the signal. Cosine wave is just a phase shift of the sine wave and represents the same signal. So, either sine or cosine wave can be used to represent AC signals. However, sine wave is more conventionally used.
a phase shifted sine wave of a different amplitude.