imaginary number

Εννοια (Αγγλικός)

1. (strict-sense) A number of the form bi, where b is any real number and i denotes the imaginary unit.
2. (broadly) A number of the form a + bi, where a and b are real numbers and b is nonzero.

Έννοιες

φανταστικός αριθμός

Συνώνυμα

complex number

imaginary

complex quantity

imaginary part

Μεταφράσεις

imaginäre Zahl

nombre imaginaire

imaginair getal

número imaginário

nombre imaginaire pur

número puramente imaginário

nombre complexe

sanal sayı

komplexe Zahl

samengesteld getal

número imaginario

número complexo

nombre imaginari

Ετυμολογία (Αγγλικός)

The adjective imaginary in this context was first used (as French imaginaire) by René Descartes in 1673, La Geometrie, referring to imaginary numbers in the broad sense, as non-real roots of polynomials. Descartes' usage was derogatory, but the concept later gained acceptance through the work of Leonhard Euler and Carl Friedrich Gauss in the 18th century.