How To Plot A Horizontal Line In Matlab

What is a line?

In Geometry, a line is a connection between 2 continuous points. So, a line is a connective path of 2 points. There should be a connection betwixt two points and the ii points should be continuous to plot a line. In graphs, a point tin take two or three axes depending on its dimension.

Suppose, y'all have 2 points and they are (x1, y1) = (two, 1) and (x2, y2) = (ii, 5). If we continuously connect these two points corresponding to the x-centrality and y-axis, then we will get a line. The line plotting has been blithe in the below figure.

Plot a line in Graph

Parametric equation of a line

The parametric equation to plot a circle in MatLab is also discussed on this site. The parametric equation of a line is used to generate continuous points between two initial points.

2nd parametric equation

10 = x₀ + g_anet

y = y₀ + m₂t

3D parametric equation

ten = 10₀ + m₁t

y = y₀ + chiliad₂t

z = z₀ + m₃t

Slope intercept class of a line

The most not-vertical line generates by the slope-intercept class. In geometry, we are used this line grade to draw a line. It is mostly used in the linear regression algorithm.

y = mx + c

This is the slope-intercept equation of a line. Where x is an independent variable, y is a dependent variable, thousand is the slope, and c is a abiding value.

What is a vertical line?

A vertical line is a directed line where the value of 10 is constant. That means the value of the ten-axis is the aforementioned while the value of the y-axis will be incremented in a given range.

What is a horizontal line?

A horizontal line is a directed line where the value of y is constant.

What is a straight line?

A straight line is a ane-way directed line that is non curved at any point in a line. A straight line tin can be vertical or horizontal, or diagonal with respect to the x-axis and y-centrality.

vertical, horizontal, and diagonal straight line (left to right)

How to plot a line in MatLab?

Plotting a line in MatLab is simple. MatLab provides a pre-defined role to plot a line.

                      # to plot a 2D line
                        line            (x,            y)
                                      
                                      
                        # to plot a 3D line
                        line            (x,            y,            z)                  

Lawmaking to plot a line in MatLab

                      %            point1            =                        [x1,            y1]
            point1            =                        [            1            ,                        two            ];
              %              point2              =                            [x2,              y2]
              point2              =                            [              5              ,                            10              ];
            
              %              ploting the line using the              'line'              function of matlab
              line              (point1,point2)            
                  

Output line

Output effigy of the above lawmaking

How to plot a vertical straight line in MatLab?

Yous can plot a vertical line in MatLab in three ways.

1. Plot a vertical line in MatLab using the 'line()' function

code

                      %            10 value            is            constant
10            =                        linspace            (            2            ,            2            );
              %              y vlaues are independent to increment
y              =                            linspace              (              3              ,              10              );
            
              %              plot the x              and              y values              in              the              'line()'
                            line              (10,y)            
                  

output figure

2. Plot a vertical line in MatLab using 'plot()' function

lawmaking

                      %            ten value            is            constant
x            =                        linspace            (            2            ,            2            );
              %              y vlaues are independent to increase
y              =                            linspace              (              3              ,              10              );
            
              %              plot the x              and              y values              in              the              'line()'
                            plot              (ten,y)
                            %              turn on the grid mode              for              a clear view
grid on
                                
                  

output effigy

The lawmaking tin exist fabricated easier if we write it similar this,

                      %                        plot            ([x1,            y1], [x2,            y2])
                        plot            ([            1            ,            1            ], [            five            ,            4            ])                  

3. Plot a vertical line in MatLab using 'xline()' role

The 'xline()' part of MatLab needs a constant x-axis value to plot a vertical line automatically.

code

                      xline            (            2            );        

output figure

How to plot a horizontal straight line in MatLab?

It is piece of cake to plot a horizontal line in MatLab with a few lines of lawmaking like the plot of a vertical line.You need to exchange the 10-axis value with the y-axis value. Now, the value of y should be constant to plot a horizontal line in MatLab.

one. Plot a horizontal line in MatLab using the 'line()' office

lawmaking

                          %              x value              is              independent to increase
x              =                            linspace              (              2              ,              x              );
                %                y vlaue                is                constant
y                =                                linspace                (                3                ,                three                );
              
                %                plot the x                and                y values                in                the                'line()'
                                line                (x,y)              
                      

output figure

ii. Plot a horizontal line in MatLab using 'plot()' role

code

                                  %                                    plot                  ([x1,                  y1], [x2,                  y2])
                                    plot                  ([                  1                  ,                  4                  ], [                  5                  ,                  5                  ])                              

output effigy

3. Plot a horizontal line in MatLab using 'yline()' function

Source: https://schoolofbeginners.blogspot.com/2022/03/plot-vertical-straight-line-matlab.html

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