Check Positive or Negative Infinity

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Abdulllah
Abdulllah 2019-6-24
编辑： Abdulllah 2019-6-24
isinf function gives logical true in both cases whether infinity is postivie or negative but does not tell whether infinity is positive or negative. How can I check whether the infinity is positive or negative?
abc=-1*inf;
isinf(abc)

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madhan ravi
madhan ravi 2019-6-24
编辑：madhan ravi 2019-6-24
sign(abc) .* isinf(abc)

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KALYAN ACHARJYA
KALYAN ACHARJYA 2019-6-24
y=abc>=0 && isinf(abc)

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