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1 2 3 4 5 6 7 8 9 10 11 12 13 14 | ISNAN ISNAN Test for Not-a-Numbers
Usage
Returns true for entries of an array that are NaN's (i.e.,
Not-a-Numbers). The usage is
y = isnan(x)
The result is a logical array of the same size as x,
which is true if x is not-a-number, and false otherwise.
Note that for complex data types that
the result is true if either the real or imaginary parts
are NaNs.
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