how to plot more than one function with out using fplot?

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Katie Norbury
Katie Norbury 2021-8-4
回答： KSSV 2021-8-4
how do i plot:
f(x)=(x-3)/(x-2)
g(x)=(2x-3)/(x-1)
with an x-axis ranging from -4 to 4 and a y-axis ranging from -10 to 10
this is what ive attempted but the grapgh isnt looking like what it should
x = linspace(-4,4,1000);
%functions
fx = ((x-3)./(x-2));
gx = ((2*x-3)./(x-1));
%plotting
plot(x,fx,'r',x,gx,'g')

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回答（1 个）

KSSV
KSSV 2021-8-4
Ran in:
You have to limit the y-axes if you want to limit to desired ranges. Read about ylim.
x = linspace(-4,4,1000);
%functions
fx = ((x-3)./(x-2));
gx = ((2*x-3)./(x-1));
%plotting
plot(x,fx,'r',x,gx,'g')
ylim([-10 +10])

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