Error when inputting function.
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Hi, I can't figure out why I am getting the error. Here is the function.
function y=nest(d,c,x,b)
|
Error: Function definitions are not permitted in this context.
And this is the code I am trying to perform in matlab.
%Program 0.1 Nested multiplication %Evaluates polynomial from nested form using Horner’s Method
%Input: degree d of polynomial,
% array of d+1 coefficients c (constant term first),
% % x-coordinate x at which to evaluate, and array of d base points b, if needed
%Output: value y of polynomial at x
function y=nest(d,c,x,b)
if nargin<4,
b=zeros(d,1);
end
y=c(d+1);
for i=d:-1:1
y = y.*(x-b(i))+c(i);
end
RunningthisM atlab fun
Page(s): 3, Numerical Analysis, 2/e by Timothy Sauer, Pearson Education NOOK Study ( , truxton@udel.edu). This material is protected by copyright.
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Jos (10584)
2013-2-11
I assume you did put that code in the editor and saved it as an m-file which you called from the command line (or from a script) and then got the error?
Is the second line ("Horner's method") on a separate line without a comment symbol ("%") in front of it? If so, that is causing the error.
3 个评论
Jos (10584)
2013-2-11
The editor is the program that you can use in matlab to edit m-files. At the command prompt, type:
>> edit
更多回答(1 个)
Azzi Abdelmalek
2013-2-10
编辑:Azzi Abdelmalek
2013-2-10
Because you did not call your function, you run it as a m-file. Try this
d=5;
c=1:10;
x=100:200;
out=nest(d,c,x)
另请参阅
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