Feer earroo
[[Coadan:Latex real numbers square.svg|thumb|100px|Cowrey cadjin son possan ny '''feer earrooyn''']]
:''Ayns [[co-earroo]], foddee '''feer earroo''' çheet er [[earroo poynt snaueagh]] neuchramp.''

Ayns [[maddaght]], ta '''feer earrooyn''' goaill stiagh [[earroo resoonagh|earrooyn resoonagh]] (myr sampleyr, 42 ny -23/129) as [[earroo neuresoonagh|earrooyn neuresoonagh]] (myr sampleyr, [[pi]] as [[fraue cherrinagh daa]]. Foddee oo cur feer earroo myr [[tuarastyl jeihoil]] beayn, myr sampleyr 2.4871773339... (as ny earrooyn goll er gyn jerrey). Foddee oo sheiltyn ad myr ynnydyn er [[linney earroo]] gyn jerrey.

[[Coadan:Number-line.gif|right|thumb|300px|Foddee oo sheiltyn feer earrooyn myr ynnydyn er linney earroo gyn jerrey.]]

==Lioaryn==
* [[Georg Cantor]], 1874, "Über eine Eigenschaft des Inbegriffes aller reellen algebraischen Zahlen", ''Journal für die Reine und Angewandte Mathematik'', volume 77, pages 258&ndash;262.
* Robert Katz, 1964, ''Axiomatic Analysis'', D. C. Heath and Company.
* [[Edmund Landau]], 2001, ISBN 0-8218-2693-X, ''Foundations of Analysis'', [[American Mathematical Society]].
* Howie, John M., ''Real Analysis'', Springer, 2005, ISBN 1-85233-314-6

==Kianglaghyn mooie==
* [http://www-groups.dcs.st-and.ac.uk/~history/HistTopics/Real_numbers_1.html The real numbers: Pythagoras to Stevin]
* [http://www-groups.dcs.st-and.ac.uk/~history/HistTopics/Real_numbers_2.html The real numbers: Stevin to Hilbert]
* [http://www-groups.dcs.st-and.ac.uk/~history/HistTopics/Real_numbers_3.html The real numbers: Attempts to understand]

{{bun}}

[[Ronney:Feer earrooyn| ]]
[[Ronney:Feer towse-oaylleeaght algeeragh]]
Ayns co-earroo, foddee feer earroo çheet er earroo poynt snaueagh neuchramp.

Ayns maddaght, ta feer earrooyn goaill stiagh earrooyn resoonagh (myr sampleyr, 42 ny -23/129) as earrooyn neuresoonagh (myr sampleyr, pi as fraue cherrinagh daa. Foddee oo cur feer earroo myr tuarastyl jeihoil beayn, myr sampleyr 2.4871773339... (as ny earrooyn goll er gyn jerrey). Foddee oo sheiltyn ad myr ynnydyn er linney earroo gyn jerrey.

right|thumb|300px|Foddee oo sheiltyn feer earrooyn myr ynnydyn er linney earroo gyn jerrey.

Lioaryn
 Georg Cantor, 1874, "Über eine Eigenschaft des Inbegriffes aller reellen algebraischen Zahlen", Journal für die Reine und Angewandte Mathematik, volume 77, pages 258–262.
 Robert Katz, 1964, Axiomatic Analysis, D. C. Heath and Company.
 Edmund Landau, 2001, ISBN 0-8218-2693-X, Foundations of Analysis, American Mathematical Society.
 Howie, John M., Real Analysis, Springer, 2005, ISBN 1-85233-314-6

Kianglaghyn mooie
 The real numbers: Pythagoras to Stevin
 The real numbers: Stevin to Hilbert
 The real numbers: Attempts to understand

 
Ronney:Feer towse-oaylleeaght algeeragh