Plotting graphs with setting my own scales
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I plotted these nonlinear functions
fplot (@ (x)x^2 -2)
hold on
fplot (@(x) sqrt(x+2))
hold on
fplot (@(x) (x^2 + 2)/(2*x-1) )
hold on
fplot (@(x) (x^2 + 2)/(2*x-1) )
hold on
fplot (@(x) 1*x )
hold off
grid on
I donot like MATLAB's build in scaling. I want the scales to be something like 2cm to 1 unit on both axes so that the plot will look exactly like this:
Can anyone please help me out? Thanks.
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the cyclist
2021년 3월 6일
편집: the cyclist
2021년 3월 6일
figure
hold on
fplot (@ (x)x.^2 -2)
fplot (@(x) sqrt(x+2))
fplot (@(x) (x.^2 + 2)./(2*x-1) )
fplot (@(x) (x.^2 + 2)./(2*x-1) )
fplot (@(x) 1*x )
grid on
xlim([0 3.2])
ylim([0 3.2])
axis square
This is not quite exactly the same, but it's a lot closer. Good enough?
Note that you also had some matrix multiplication and division in your function definitions, which I assume was not intended. Take note of the changes I made.
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the cyclist
2021년 3월 6일
As described in the this documentation, fplot will display the asymptote of some functions. You can turn this behavior on or off with the 'showpoles' input:
figure
fplot (@(x) (x.^2 + 2)./(2*x-1), 'showpoles','on' )
figure
fplot (@(x) (x.^2 + 2)./(2*x-1), 'showpoles','off' )
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