Input argument

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fatma
fatma 2011-11-1
function y = f1(x)
% A univariate function with a simple zero
syms x
y = cos(x) - x;
r = fzero('f1', 0.5)
It gives the following error
Error in ==> oct3 at 5 r = fzero('f1', 0.5) >>

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回答（2 个）

bym
bym 2011-11-1
try
r = fzero(@f1,.5)
Walter Roberson
Walter Roberson 2011-11-2
Why is the error in the file oct3 when all you show us is the file f1 ?
What is the error message you are getting?
  1 个评论
fatma
fatma 2011-11-2
??? Input argument "x" is undefined.
Error in ==> oct3 at 4
y = cos(x) - x;
This error allows happen in similar programs considering "x" is undefined

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