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Null object: Difference between revisions
→{{header|Matlab/Octave}}
(→{{header|Chapel}}: show nil test) |
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<lang Mathematica>False
True</lang>
=={{header|MATLAB}} / {{header|Octave}}==
The closest think to a NULL element in Matlab/Octave is an empty field or empty string; empty fields in a conditional expression evaluate to false.
<lang MATLAB>a = []; b='';
isempty(a)
isempty(b)
if (a)
1,
else,
0
end;</lang>
<pre>octave:4> a = []; b='';
octave:5> isempty(a)
ans = 1
octave:6> isempty(b)
ans = 1
octave:7> if (a) 1, else, 0, end;
ans = 0</pre>
=={{header|Maxima}}==
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