## What is a period in Matlab?

Description: The period character separates the integral and fractional parts of a number, such as 3.1415 . MATLAB operators that contain a period always work element-wise. The period character also enables you to access the fields in a structure, as well as the properties and methods of an object.

### How do you calculate period in Matlab?

Direct link to this comment Note that if you have a specific time vector, for example ‘tv’, using your findpeaks call, you need to determine the period as: Period = mean(diff(tv(peaks))); That will give you the period in terms of your sampling times.

**How do you plot only one period of a signal in Matlab?**

Direct link to this answer

- x = 1:100;
- signal = (1-cos(2*pi*0.01*x)).*sin(2*pi*0.15*x);%signal with cycles.
- plot(signal,’r-‘)
- [peak,locs] = findpeaks(-signal); % Find Minimas.
- %you can use loop to plot every single cycle.
- firstInd = locs(1);%use a minima and the next one to find cycle limits.
- lastInd = locs(2);

**What does the dot operator do in Matlab?**

The dot indicates element-wise as opposed to array operations. See the documentation on Array vs. Matrix Operations for details.

## What is colon MATLAB?

The colon(:) is one of the most useful operator in MATLAB. It is used to create vectors, subscript arrays, and specify for iterations. If you want to create a row vector, containing integers from 1 to 10, you write − 1:10.

### How do you find the period of a sequence?

A periodic sequence can be thought of as the discrete version of a periodic function. In particular, for a periodic sequence {an}, there exists a positive integer constant p such that for all n in thhe natural numbers, an=an+p. The constant p is said to be the period of the sequence.

**How do you plot a signal in Matlab?**

- Plotting Signals in Matlab.
- Contents.
- Plot a signal using different colors and markers.
- Label x and y axes, and add a title.
- Plot a number of signals on the one plot.
- Create a new figure for different plots.
- Change the x-axis scale.
- Create a file (jpg, gif, emf, bmp) for use in documentation.

**What does a dot in front of a number mean?**

This is an example of a recurring decimal. This is written as: The dot above 6 means that it is repeated indefinitely (i.e. forever). An alternative notation involves placing a bar above the repeating digit(s) in the quotient (i.e. answer).

## How does MATLAB calculate dot product?

C = dot( A,B ) returns the scalar dot product of A and B .

- If A and B are vectors, then they must have the same length.
- If A and B are matrices or multidimensional arrays, then they must have the same size. In this case, the dot function treats A and B as collections of vectors.

### How does the period character work in MATLAB?

Description: The period character separates the integral and fractional parts of a number, such as 3.1415. MATLAB operators that contain a period always work element-wise. The period character also enables you to access the fields in a structure, as well as the properties and methods of an object. Decimal point: Element-wise operations:

**How to calculate period of signal with MATLAB?**

Sign in to answer this question. use autocorrelation. If your data is periodic you should get high correlation once the lag time matches the period. here is an example: In a more complex data set including some noise you need to work around the find peaks a little bit. That might be too noisy.

**What does three periods at the end of a line mean in MATLAB?**

Description: Three or more periods at the end of a line continues the current command on the next line. If three or more periods occur before the end of a line, then MATLAB ignores the rest of the line and continues to the next line. This effectively makes a comment out of anything on the current line that follows the three periods.

## Where to put the period in this expression?

If you want an element by element operation, use a period. If you want a matrix style operation, just use the operator (*,/,^) without the period. I trust you know the difference between element-by-element and matrix operations.