Graph function problem Incorrect values

2022 7 28
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更新时间：2022 7 28
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Hello,
I have this function, If I want to produce a graph in the range of 0<x<50 it does not give a correct answer of y. Thanks for the helpers
x=1
y=-x.^3+3*x.^2+2*x-27
y =
-23
%%plot
x=[0:50];
y=-x.^3+3*x.^2+2*x-27;
plot(x,y)

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Chunru
Chunru 2022-7-28
Ran in:

0 个投票

Ran in:
What's wrong?
x=[0:50];
y=-x.^3+3*x.^2+2*x-27;
plot(x,y)

3 个评论
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Emilia
Emilia 2022-7-28
See in the answer above if I set x=1 to be y=-23 but the graph doesn't show me that.
Chunru
Chunru 2022-7-28
The y axis scale is x10^4. If you zoom in, you will see the correct value.
Emilia
Emilia 2022-7-28
Yes, you're right, I didn't notice. Thank you! :)

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