Undefined function or variable 'x'. help

2017 12 15
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更新时间：2017 12 15
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Hi, I'm very new to matlab and i'm trying to write a function that outputs x and y when you input a, b and c (polynomial) and i get Undefined function or variable 'x' when i try to run it.
This is my function currently
function [a,b,c] = Polynomial(x,y)
a=input(a);b=input(b);c=input(c);
g=[a b c];
x=[1:0.01:2];
y=polyval(g,x);
plot(x,y)
end

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Walter Roberson
Walter Roberson 2017-12-15
How are you invoking the function?
Why are you accepting x and y as inputs, but then assigning new values to them?
George Connett
George Connett 2017-12-15
I didn't mean to accept them as inputs, thought having them after the function name i.e. Polynomial(x,y) meant they were to be outputted.
Wanted to type Polynomial to invoke the function.

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