grammatical plural; complex number
Meanings
2 senses · 9 examplesnoun
plural (grammatical number); plural form
formalA grammatical category used in languages like English, Russian, and Arabic to indicate more than one of a noun. Not all languages have a grammatical plural.
In English, the plural form of a noun is usually made by adding '-s' or '-es'.
'Cats' is the plural of 'cat'.
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The plural form of this noun is irregular; it's 'children'.
In Russian, the plural form of nouns changes in complex ways.
Chinese nouns themselves do not have morphological changes for singular or plural.
noun
complex number (mathematics)
technicalA number expressed in the form a + bi, where 'a' and 'b' are real numbers, and 'i' is the imaginary unit satisfying i² = -1. Fundamental in advanced mathematics and engineering.
'3 + 4i' is a complex number.
Complex numbers are very important in circuit analysis and signal processing.
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The real part of the complex number is 5, and the imaginary part is -2.
We need to use complex numbers to solve this equation.