Determine which array elements are infinite
TF = isinf(A)1 (true) where the elements
of the array A are Inf or -Inf, and
0 (false) where they are not. If
A contains complex numbers, isinf(A) contains
1 for elements with infinite real or imaginary part, and
0 for elements where both real and imaginary parts are finite or
NaN.
If x is a real scalar, exactly one of
isfinite(x), isinf(x), and
isnan(x) returns logical 1
(true).
For a complex scalar z, isinf(z) and
isnan(z) can both return logical 1. For example,
isinf(complex(Inf,NaN)) and
isnan(complex(Inf,NaN)) both return logical 1.