Magic and Trace Function

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Pritesh Shah
Pritesh Shah le 14 Sep 2012
Hi, I was amaze to see following output: >> A=[2 3; 4 5]
A =
2 3
4 5
>> trace(A)
ans =
7
>> trace A
ans =
65
Que: Why am I getting answer of trace A as 65??
(ASCI Value of A is 65)

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Wayne King
Wayne King le 14 Sep 2012
Modifié(e) : Wayne King le 14 Sep 2012
That's because the functional form you are using when you enter
>>trace A
is executing
>>trace('A')
and in this case, it is nothing more than
>>sum('A')
Just like
>>help conv
is the same as
>>help('conv')

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