2010-12-30 13 views

Respuesta

3

Éstos son algunos de los errores más comunes:

%# create two arrays, one 3-by-3, one 4-by-4 (see 'help magic' for details about them) 
>> m3 = magic(3); 
>> m4 = magic(4); 

%# matrix multiplication error. Arrays must be X-by-Y and Y-by-Z 
>> m3*m4 
??? Error using ==> mtimes 
Inner matrix dimensions must agree. 

%# cannot multiply (add, subtract...) element-wise if not the same number of elements 
>> m3.*m4 
??? Error using ==> times 
Matrix dimensions must agree. 

%# m3 is 3-by-3, and thus has only 9 elements. There is no element #10 
>> m3(10) 
??? Index exceeds matrix dimensions. 

%# there is also no element #-1 
>> m3(-1) 
??? Index exceeds matrix dimensions. 

%# can only index with integers or logicals 
>> m3(2.2) 
??? Subscript indices must either be real positive integers or logicals. 

%# m5 has not been defined yet. This is the "probably a typo"-error 
>> m5(3) 
??? Undefined function or method 'm5' for input arguments of type 'double'. 

%# Cannot assign the elements of m4 to m3, because they don't have the same number of elements. 
%# m3(:) = m4(1:9) would work. 
>> m3(:) = m4(:) 
??? In an assignment A(:) = B, the number of elements in A and B 
must be the same 

Además, cada vez que hay un error críptico en el interior de una función integrada en Matlab por lo general es debido a que llamó la función incorrecta (por ejemplo, con una célula array donde esperaba cadenas, o con NaN donde esperaba vectores de solo finito).

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