How to plot x^3-4x^2+1 without setting the domain?

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Cassandra Meyer
Cassandra Meyer 2022-1-28
评论： Cassandra Meyer 2022-1-28
I need to specifically have matlab do the default domain first without inputting it as the first part of this problem, and my initial thought was to try this but it didn't work. I'm very new to matlab so it could be a simple mistake.
fplot(@(x) x.^3+4x.^2+1)

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Voss
Voss 2022-1-28
Ran in:
"4x" is not a valid expression. "4*x" is.
fplot(@(x) x.^3+4*x.^2+1)

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