irrational

irrational (of a number: not expressible as a fraction)

adjective i-ra-tsi-oh-NAHL Rare

Origin: from Latin 'irrationalis'

Also means

irrational (unreasonable)

Usage Note

irrational beschreibt in der Mathematik Zahlen wie π oder √2, die sich nicht als Bruch ganzer Zahlen darstellen lassen. Abgrenzung: rational vs. irrational ist Schulstoff der Oberstufe.

Examples

"Die Kreiszahl Pi ist eine irrationale Zahl."

Natural Translation

The number pi is an irrational number.

Literal Translation

The circle number Pi is an irrational number.

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