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Interval package

360 bytes removed, 15:20, 21 November 2016
→‎Parameter checking: NaI's may now be non-scalar
if (not (isa (y, "infsupdec")))
y = infsupdec (y);
endif
* Methods of class <code>infsupdec</code> as well as methods of class <code>infsup</code> that are not overridden by <code>infsupdec</code> must check parameters using the <code>isnai</code> function and return the NAI value if it is present. This will propagate NAI values through any function evaluations.
if (isnai (x))
result = x;
return
endif
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