## 155 Reputation

12 years, 115 days

## @Markiyan Hirnyk Thanks. Could any ...

@Markiyan Hirnyk Thanks. Could any positive semi-definite function be a pdf? (Anyway seems i figured out a way to generate points)

## @Carl Love Thank you very much! It ...

@Carl Love Thank you very much! It works now!

## Thank you very much! It works now! ...

Thank you very much! It works now!

## @Markiyan Hirnyk Thank you very muc...

@Markiyan Hirnyk Thank you very much!

## @Carl Love Thank you so much for yo...

@Carl Love Thank you so much for your explanation! @acer provides a solution and it works now!

## @acer Thank you! It works now! &nbs...

@acer Thank you! It works now!

## @Thomas Richard    Excuse me, ...

Excuse me, I got one more problem.

Suppose I have

***

str:="hello world";
str2:="hello world2";
WriteFile[APPEND]("D:\\output3.txt", str);
WriteFile[APPEND]("D:\\output3.txt", str2);

***

The output file does not contain both hello world and hello world 2. Why [APPEND] does not work and how to make it work?

Thank you

## @acer Thank you so much!...

@acer Thank you so much!

## @Carl Love The plan is to generate ...

@Carl Love The plan is to generate lists from program, then sort them. In the whole procedure, I would like to avoid manually operation, such as [ [] [] [].... ] (Hopefully I have expresssed clearly). Anyway there are already solutions provided by tomleslie, Kitonum, and you ...

## @Carl Love Thank you very much for ...

@Carl Love Thank you very much for your advice. The size of task will be ~10^4 items, hence I would like to have a method as

robust as possible.

@Carl Love Thank you for your advice. In general, I may create a table like

[k1,k2,k3]

[k2,k1,k3]

....

It would work as

f:= [[1,3,2], [2,1,3], [1,2,3], [2,3,1], [3,2,1], [3,1,2]]:

But for general ones, manually written as [ [] [] []... ] would be rather inconvient. Is there any systemmaical input for doing that?

Thank you very much

Cong

## @Carl Love Thank you! It works now!...

@Carl Love Thank you! It works now!

## @Carl Love Thank you! It works now!...

@Carl Love Thank you! It works now!

## @Carl Love Thank you so much! It wo...

@Carl Love Thank you so much! It works now!

## @Carl Love Thank you very much.&nbs...

@Carl Love Thank you very much.

Excuse me, how should I define a list systematically, like

for i from 1 to 3 do

f[i]:=i;

end do;

how to let f be a list?

Thank you!

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