241 reputation
17
bio website
location Italy
age 48
visits member for 2 years, 5 months
seen Jan 23 at 16:51

Mathematical Physics researcher. Linux user from 1996. C programmer from 1996 to 2002. Mainly oriented to shell programming, package management tools and in general to command line.


Dec
24
comment Substitution in parameters to “Which”
@BobHanlon: ok, with Piecewise I can Plot the function.
Dec
24
comment Substitution in parameters to “Which”
Thanks @Naitree and Kuba, I realized my mistake. The problem now is how to Plot a similar function, given that Plot does not seem collaborative, but this is probably matter for another question.
Dec
24
asked Substitution in parameters to “Which”
Jul
2
awarded  Curious
Mar
23
awarded  Yearling
Mar
23
accepted Returning a value from a Module
Mar
23
awarded  Commentator
Mar
23
comment Returning a value from a Module
Also, I cannot find any reference to a possible second parameter to Return in that document.
Mar
23
comment Returning a value from a Module
Thank you, can I ask if you know if Return has always worked this way?
Mar
23
asked Returning a value from a Module
Nov
3
comment Adapting old Arrow expressions
This is exactly what I was looking for.
Nov
3
accepted Adapting old Arrow expressions
Nov
3
comment Adapting old Arrow expressions
Ok, thanks again. But I am now realizing there is an interpretation error, because the old HeadCenter gave the position of the junction marked with the red circle in this image: dl.dropboxusercontent.com/u/503888/arrow.png
Nov
3
comment Adapting old Arrow expressions
Thank you for the pattern, but I prefer not to use it and switch to the new format. I wonder were in the Help System they say that Arrowheads[{{a,b}}] has the same meaning of the old HeadLength->a and HeadCenter->b.
Nov
3
asked Adapting old Arrow expressions
Oct
8
accepted Why the inequality does not take into account the domain?
Oct
7
comment Why the inequality does not take into account the domain?
This does not mean it is mathematically correct.
Oct
7
asked Why the inequality does not take into account the domain?
Mar
16
comment Declaring a positive variable
@LeonidShifrin: thanks for pointing to that question
Mar
16
comment Declaring a positive variable
@LeonidShifrin: No way to say that R is positive once for all?