Assertion: complex number's part | /r/HasProperty | negative
Facets:
Source sentences:
text: Moreover, when the imaginary part is negative, that is, b = −|b| < 0, it is common to write a − |b|i instead of a
text: But as both the real and imaginary parts of a complex number in the rectangular form can be either a positive number or a negative number, then both the real and imaginary axis must also extend in both the positive and negative directions.