Undefined function 'sym' for input arguments of type 'double'.

16 次查看（过去 30 天）
Khattab
Khattab 2012-11-27
Hi everyone;
When I run this script:
% This is a comment.
>> 4+5-3
ans =
6
>> 2*3/6
ans =
1
>> sym(1/2)+sym(3/4)
I face this error:
Undefined function 'sym' for input arguments of type 'double'.
Could anyone help me please?

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回答（2 个）

Muruganandham Subramanian
Walter Roberson
Walter Roberson 2012-11-27
You might not have the Symbolic Toolbox installed or licensed. The Symbolic Toolbox is an extra-cost feature for Academic and Commercial licenses. The Symbolic Toolbox is included with the Student Version but is not necessarily installed by default.

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