In purely imaginary base bi the b numbers from 0 to b 1 are used as digits.

No, in that case it's still a purely imaginary, empty idea.

The eigenvalues of a skew-Hermitian matrix are all purely imaginary.

For reciprocal lossless networks all the are purely imaginary.

It was a pleasant feeling, though purely imaginary.

A finger had been pointed at every secret organization known to exist, and many that were purely imaginary.

He went on to give in detail the sexual customs, obligations, and limitations of Lola's purely imaginary civilization.

Nourse's story is set on a purely imaginary Mercury.

Few characters in the story are purely imaginary.

He felt a slight tingle as he did so (perhaps a purely imaginary one), but it quickly passed.