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<h4 class="subsection" id="Broadcasting-and-Legacy-Code-1"><span>19.2.1 Broadcasting and Legacy Code<a class="copiable-link" href="#Broadcasting-and-Legacy-Code-1"> ¶</a></span></h4>
<p>The new broadcasting semantics almost never affect code that worked
in previous versions of Octave. Consequently, all code inherited from
<small class="sc">MATLAB</small> that worked in previous versions of Octave should still work
without change in Octave. The only exception is code such as
</p>
<div class="example">
<div class="group"><pre class="example-preformatted">try
c = a.*b;
catch
c = a.*a;
end_try_catch
</pre></div></div>
<p>that may have relied on matrices of different size producing an error.
Because such operation is now valid Octave syntax, this will no longer
produce an error. Instead, the following code should be used:
</p>
<div class="example">
<div class="group"><pre class="example-preformatted">if (isequal (size (a), size (b)))
c = a .* b;
else
c = a .* a;
endif
</pre></div></div>
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