Complex number determination

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iael
iael 2012-1-3
How can I check if a number is imaginary? I want to set an if function, that if a variable is an aimginary number then something will happen.

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Andrei Bobrov
Andrei Bobrov 2012-1-3
z - your number
out = imag(z) ~= 0;
if out = true, then z - complex number
OR
out = isreal(z)
if out = false, then z - complex number

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