I just need a quick and easy way to say The square root of xxxx is yyyyi so the square root of -100 is etc... B = sqrt(R) ; disp(B); D = sprintf('R is negative. The square root of %1.1f is %1.1fi',R,B) For some reason it says B is 0 for any number thats negative.

Negative squareroot quick and easy

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Collin Kerr on 10 Mar 2016

Answered: Robert on 10 Mar 2016

I just need a quick and easy way to say The square root of xxxx is yyyyi so the square root of -100 is etc...

B = sqrt® ;

disp(B);
D = sprintf('R is negative. The square root of %1.1f is %1.1fi',R,B)

For some reason it says B is 0 for any number thats negative.

Robert on 10 Mar 2016

sprint is taking the real part of your complex result. Try:

sprintf('R is negative. The square root of %1.1f is %1.1fi',R,imag(B))

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