2,079 reputation
729
bio website problemania.org
location Problemania
age
visits member for 2 years, 2 months
seen Apr 16 at 18:01

A moderator at Wiki site http://problemania.org where a group of enthusiasts enjoying sharing the fun solving mathematics, physics, and computing problems. We primarily work on problems found in college/grad school text books.

Web page: http://problemania.org

Twitter: http://twitter.com/problemania

Github: https://github.com/Problemania

E-mail: problemaniac@gmail.com ( NOT problemania@gmail.com )


Sep
14
asked How to check if a database connection is open?
Sep
11
awarded  Critic
Sep
11
awarded  Nice Question
Sep
11
accepted How to avoid nested With[]?
Sep
11
revised How to avoid nested With[]?
added 23 characters in body
Sep
11
revised How to avoid nested With[]?
added 31 characters in body
Sep
11
comment How to avoid nested With[]?
With the potential effects of these different attributes on the program unknown, I think I'd better just use Module[{v1, v2}, v2=f[v1]; g[v1, v2]]. Thanks!
Sep
11
comment How to avoid nested With[]?
Just hide the nested With[] under hood of a new symbol?
Sep
11
asked How to avoid nested With[]?
Sep
10
comment How to make a drop-down selector?
I don't need to show anything such as a plot that depends on the value selected in the drop-down. Rather, I just need a state-recorder that knowns the user's selection in the menu which can later be read out from the notebook.
Sep
10
asked How to make a drop-down selector?
Sep
10
accepted How to write a UTF-8 file?
Sep
9
comment How to write a UTF-8 file?
Really? No wonder. My guess is Export[file, ...] internally will create file handle any way and using file handle directly probably just mean a replacement didn't occur. It might be an accident due to implementation details.
Sep
9
comment How to write a UTF-8 file?
But I have a big expression to write. Not just a string.
Sep
9
asked How to write a UTF-8 file?
Aug
31
accepted How to remove an expression from a file?
Aug
31
accepted How to let output and message be print to two separate external files?
Aug
31
accepted How to read data file quickly?
Aug
31
accepted What format to use to store expressions in database?
Aug
31
accepted How to write output to an external text file in addition to the standard output stream?