User:Ling Kah Jai

I am a Malaysian Chinese born in Sibu, Sarawak state of Malaysia. I work in Kuching, which is in the same state, as a civil and structural consulting engineer. Kuching is a small beautiful city with lots of trees and landscape along the streets. My interests are computer, programming, engineering, mathematics and physics.

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Frequent use[edit]

My contribution[edit]

Euler spiral (more or less single-handed).
Transposable integer (more or less single-handed).
Last stone game, which was merged by some user to Nim.
Proofs of Fermat's little theorem
Half of Repeating decimal that includes:

My previous version of Repeating decimal:

http://en.wikipedia.org/w/index.php?title=Repeating_decimal&oldid=290277404

that includes:

Explanation of cyclic behavior
Arithmetic proof of divisibility
Connection with Fermat's little theorem

and the last updated version (20 October 2009) before simplification by others:

http://en.wikipedia.org/w/index.php?title=Repeating_decimal&oldid=320979464

My previous version of Midy's theorem:

http://en.wikipedia.org/w/index.php?title=Midy%27s_theorem&oldid=320154070

Also see User:Ling Kah Jai/Midy's theorem

My edition of Parasitic number (with added section):

http://en.wikipedia.org/w/index.php?title=Parasitic_number&oldid=309072561

My subpages[edit]

How to delete a subpage[edit]

See Wikipedia:Guide to deletion#Pages in user space: Edit the page putting {{db|reason for deletion}} at the top of the page. Such a reason might be, "subpage I created in error" or "subpage I created is no longer required".