Plotting a sequence using stem()

2017 10 5
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How can one plot this sequence using the command stem? I have tried a lot of combinations of this, but I guess I don't quite grasp the concept of computing elementwise:
My code (which doesn't work):
x = linspace(1,50,50) % I'm computing the first 50 terms
y = sqrt((3+2*x.^2)/(8*x.^2+x))
stem(y)
Thank you.

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Star Strider
Star Strider 2017-10-5

1 个投票

You need to vectorise the division as well:
y = sqrt((3+2*x.^2)./(8*x.^2+x));
↑
and ideally plot both your independent and dependent variables:
stem(x, y)

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