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en This user is a native speaker of the English language.
zh-2 該用戶能以一般中文進行交流。
fr-1 Cet utilisateur peut contribuer avec un niveau élémentaire de français.
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This user knows by heart the first 70 digits in the decimal representation of pi.
Pigeonhole.jpg This user exploits the pigeonhole principle.
This user is a mathematician.
Rose 2sin(4theta).svg This user thinks polar coordinates are pretty.
Public domain This user comes from Canada.
SaskatoonBroadwayBridge.JPG This user comes from Saskatoon.
RCAC This user is or was a member of the Royal Canadian Air Cadets.
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This user has visited 5 of the 13 provinces and territories.
French-horn.png This user plays the horn.
Steinway Schriftzug.jpg This user plays the piano.
orch This user plays in an orchestra.
C-3 This user is an advanced C programmer.
c++-3 This user is an advanced C++ programmer.
py-3 This user is an advanced Python programmer.
asm-1 This user is a beginning assembly language programmer.
vb-0 This person does not understand Visual Basic (or understands it with considerable difficulties, or does not want to program in it).
BASIC-2 This user is an intermediate BASIC programmer.
bash-1 This user is a beginner Bash programmer.
re This user writes regular expressions.

A little bit about me: my name is Robert Xiao, and I'm a Ph.D. candidate in Human-Computer Interaction at Carnegie Mellon University.

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Committed identity: 72720d17e5c707086ab03785f812cc21d9e036ef36417d712625ad53a90dddd7 366e2940774a235d2ea7e3c65b8120136480ab85d3020512801d576a2b5c7b9f is a SHA-512 commitment to this user's real-life identity.