If the value of the surd is positive, then it will be another
surd. Otherwise it will be a complex number.
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A surd is the square root of an integer (whole number), e.g.
square root of 2 is a surd. Pi is not the square root of an integer
so not a surd, just an irrational number
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I am pretty sure that the cube root of negative seven is a surd.
I checked on the calculator.......and it showed a negative
number.....??I think when it is not a surd...it's supposed to say
error, so the number probably means that it is a surd..