Speakur

Word Pronunciation & Dictionary

petersen-morley theorem

Word Rarity Rare

Frequency: Zipf frequency 2.81 in modern English

Syllables
pe-tersen--mor-ley the-o-rem
IPA
33
Scrabble Score
21
Letters
7
Syllables
11
Unique Chars

Meaning

name

A theorem stating that, if a, b, c are three general skew lines in space, if a′, b′, c′ are the lines of shortest distance respectively for the pairs (b,c), (c,a) and (a,b), and if p, q and r are the lines of shortest distance respectively for the pairs (a,a′), (b,b′) and (c,c′), then there is a single line meeting at right angles all of p, q, and r.

Etymology

Named after Johannes Trolle Petersen (later Johannes Hjelmslev) and Frank Morley.

Inflected Forms

the Petersen-Morley theorem (canonical)

Questions

What does petersen-morley theorem mean?
A theorem stating that, if a, b, c are three general skew lines in space, if a′, b′, c′ are the lines of shortest distance respectively for the pairs (b,c), (c,a) and (a,b), and if p, q and r are the lines of shortest distance respectively for the pairs (a,a′), (b,b′) and (c,c′), then there is a single line meeting at right angles all of p, q, and r.
Where does petersen-morley theorem come from?
Named after Johannes Trolle Petersen (later Johannes Hjelmslev) and Frank Morley.

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