Is it possible to only plot specific graph in a for loop?

2022 12 15
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更新时间：2022 12 21
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I have a code where i graph a sine wave for every x from 1 to 10, but i only want to graph the sine wave with x=3,7, and 8.
Here's my example code :
---------------------------------------------
t = 0:0.01:2*pi
for x = 1:10
y = sin(x)
plot(t,y)
end
---------------------------------------------
I only want to graph in the same figure when x equals to 3,7,8.
if i use "if", when x is not equal to 3,7,8 , it will erase all the graph recorded.
is it possible?
thankyou

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VBBV
VBBV 2022-12-15
编辑：VBBV 2022-12-15

1 个投票

t = 0:0.01:2*pi
x = [3 7 8];
for k =1:length( [3 7 8])
y(k,:) = sin(t.*x(k));
end
plot(t,y)
legend('x = 3','x =7','x=8')

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