Matlab Plotting Sine Wave (2024)

FAQs

How to plot 50Hz sine wave in Matlab? ›

A popular way to make a sine wave oscillator is to use an RC network to produce a 180 degree phase shift to use in the feedback path of an inverting amplifier. Setting the gain of the amplifier to offset the RC network attenuation will produce oscillation.

An investigation of y = a sin (bx+c) for different values of a, b, and c. The graphs of functions defined by y = sin x are called sine waves or sinusoidal waves. Notice that the graph repeats itself as it moves along the x-axis. The cycles of this regular repeating are called periods.

The FFT. The function fft( ) estimates the coefficients of the Fourier transform, transforming a time-domain signal (i.e., an observed fMRI time series) into a series of sine waves with different amplitudes and phases. Fourier coefficients are complex numbers, with values in the real and imaginary planes.

Y = nco( phInc ) returns a sinusoidal signal, Y , generated by the NCO with the specified phase increment, phInc . Y = nco( OFFSET ) returns a sinusoidal signal, Y , with phase offset, OFFSET , when the PhaseOffsetSource property is set to 'Input port' .

A pure sine wave inverter is beneficial because it: Efficiently powers devices that directly use the alternating current (AC) input. Powers sensitive devices like radios that can experience interference with modified sine waves.

Voltage fluctuations, such as spikes, surges, or voltage sags, can harm electronic devices. A sine wave UPS smooths out these irregularities, providing a consistent and reliable voltage supply within a specified tolerance range. This feature protects devices from voltage-related damage and extends their lifespan.

In its most general form, the sine wave can be described using the function y=a*sin⁡(bx), where: a is known as the amplitude of the sine wave. b is known as the periodicity.

in sine function in MATLAB it is always sin(wt). here frequency w is in radian/sec not f (in HZ) so w will give you the no. of the cycle. if you want to use the sin(2*pi*60*t) you can use the sind(2*pi*9.545*t).

How to use sine in Matlab? ›

Y = sin( X ) returns the sine of the elements of X . The sin function operates element-wise on arrays. The function accepts both real and complex inputs. For real values of X , sin(X) returns real values in the interval [-1, 1].

Degrees and Radians

Many Mapping Toolbox functions, such as distance and azimuth , use degrees by default and allow you to choose radians. Some functions, such as unwrapMultipart and meridianarc , use radians by default or require you to work in radians.

To graph a sine graph by hand, plot key points. The y-value of sine is zero at the angles of 0, π, and 2π. Sine equals 1 at π/2 and −1 at 3π/2. Plot those points on a coordinate plane and draw the wave.

You will see a sinusoid on the graphics window. The sinusoid is plotted for values of x between 0 and 2 p; the step between consecutive values of x is 0.1. Experiment with commands "cos", "tan", "cot".