When I execute the following command: taylor('exp(-x)') I receive the following error message: ERROR: ??? No appropriate methods for function taylor.

Why do I receive the error "??? No appropriate methods for function ..." when using symbolic functions?

2009 6 27

1 个回答

2 次查看（30 天）

0 个投票

When I execute the following command:

taylor('exp(-x)')

I receive the following error message:

??? No appropriate methods for function taylor.

0 个投票

In order to use a symbolic function in MATLAB you must first declare symbolic variables with the SYM command. Please try the following syntax:

syms x
taylor(exp(-x))

Alternately, if you have a numeric value in the variable x and you don't want to overwrite it:

x=0.5;
T=taylor(sym('exp(-x)'))
subs(T)

在帮助中心和 File Exchange 中查找有关 Symbolic Math Toolbox 的更多信息

Find the treasures in MATLAB Central and discover how the community can help you!

Translated by