Matlab is a programming language that allows users to enter, manipulate, plot and analyse data in a variety of ways. Matlab's built-in graphing utility, the "plot" function, can yield a graph of a set of points and also can draw lines between these points. Once you have plotted a set of points, invoke the plot function again with the specific data points you want to connect.

- Skill level:
- Moderately Easy

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### Things you need

- Matlab R2006 or later version

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## Instructions

- 1
Open Matlab. Plot the data that contain the points you want to connect. Use the "Plot" function.

- 2
Identify the x-coordinates of the two points you want to connect. Type "x = [x1, x2]" in the command window. For example, if you want to connect (1,5) and (3,6), type "x = [1,3]."

- 3
Identify the y-coordinates of the two points you want to connect, and type "y = [y1,y2]" in the command window. For example, if you want to connect (1,5) and (3,6), type "y = [5,6]."

- 4
Type "plot(x,y)" in the command window to connect the two points.

#### Tips and warnings

- To plot the whole set of data, type "plot(X,Y)" in the command window. "X" should be a set of x-coordinates. "Y" should be a set of y-coordinates.
- If you want to connect more points, repeat steps 3, 4, and 5 with new points.