Plot system of equations

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Emmanuel Negron
Emmanuel Negron 2019-9-4
回答： Bhargavi Maganuru 2019-9-9
I need help on how to type this in Matlab and make a plot of this system of equations.
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Emmanuel Negron
Emmanuel Negron 2019-9-4
编辑：Emmanuel Negron 2019-9-4
I uploaded a picture with the discription of the system of equations I want to plot on Matlab
9x-3y=-1
(1/5)x+(2/5)y=(-1/3)
Range y=x= +-5
darova
darova 2019-9-5
What about plot() function?

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回答（1 个）

Bhargavi Maganuru
You can create function handles to the named or anonymous functions.
For example, for first equation in your system of equations you can write
x=linspace(-5,5);
f = @(x) (9*x+1)/3;
For more information about creating function handles refer to the link https://www.mathworks.com/help/matlab/matlab_prog/creating-a-function-handle.html
You can use fplot(f) function to create a plot defined by y=f(x)
fplot(f)
ylim([-5,5]) %to limit y-axis from -5 to 5
For more information about fplot refer to the link https://www.mathworks.com/help/matlab/ref/fplot.html

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