Die Suche ergab 179 Treffer

2. Mär 2019 17:41
Forum: Konzepte der Programmiersprachen
Thema: Types in If0 Branches
Antworten: 2
Zugriffe: 184

Re: Types in If0 Branches

What type would the if expression have, if you would allow the different types in the branches?
var x = (if 1>3 then "hello" else 42)
23. Jan 2019 21:05
Forum: Konzepte der Programmiersprachen
Antworten: 2
Zugriffe: 160

I don't think 14 should be part of the list. See, 14 = 7*2, so there is a 7. And 7 is neither 2, 3 or 5.
It seems you want to generate products who have at least one factor 2, 3, 5, but actually the task says to produce products whose factors are _only_ 2, 3, 5. I hope that clears it up
23. Jan 2019 15:52
Forum: Konzepte der Programmiersprachen
Thema: Homework 11
Antworten: 2
Zugriffe: 160

Re: Homework 11

Hi! I think that would be the case if the code was run with strict evaluation (like Java, Scala, JS, C, etc.). Haskell uses lazy evaluation, so the individual elements of the infinite stream are not actually computed until needed. So just make sure you never use them? ( Also, I have a working soluti...
15. Jan 2019 01:26
Forum: Konzepte der Programmiersprachen
Thema: Exercise-01 Solution
Antworten: 3
Zugriffe: 180

Re: Exercise-01 Solution

Here is another way to look at the problem: A List is either Nil or Cons(x, xs): class List[A] case class Nil[A] extends List[A] case class Cons[A](x: A, xs: List[A]) extends List[A] Note, in scala Cons was called :: . So its actually something like: class List[A] case class Nil[A] extends List[A] c...
3. Dez 2018 19:54
Forum: Konzepte der Programmiersprachen
Thema: Can not access course website and therefore slides
Antworten: 3
Zugriffe: 304

Re: Cannot access slides with RBG account

Wrong password? Use your RGB password not the TU/HRZ/SSO password. (If you did use different passwords for both accounts or change one of them recently?). https://support.rbg.informatik.tu-darmstadt.de/wiki/de/doku/computerhilfe/passwort Oh, hm, when I try to access the site, chrome tells me it is u...
29. Nov 2018 17:50
Forum: Konzepte der Programmiersprachen
Thema: Assignment 5, Task 1, eval-function
Antworten: 2
Zugriffe: 141

Re: Assignment 5, Task 1, eval-function

I turned the comment into code, too. And it seems to work.
25. Nov 2018 21:40
Forum: Konzepte der Programmiersprachen
Thema: StackOverflowError in RCFLAEInterp
Antworten: 4
Zugriffe: 256

Re: StackOverflowError in RCFLAEInterp

Hey, it would be easier if the posts would mention the assignment and task? But from what you just wrote, as I understand you so far, you got an StackOverflowError, meaning you probably have an endless recursive call. According to the stack trace its happening during some toString methods. If we loo...
22. Nov 2018 22:26
Forum: Konzepte der Programmiersprachen
Thema: Assignment 1, Task 1, 'non-trivial'
Antworten: 2
Zugriffe: 213

Re: Assignment 1, Task 1, 'non-trivial'

Wait, sorry. That was not an answer.

So the difference is, that a List(1, 2, 3, 4, 5) actually looks like (1, (2, (3, (4, (5, ()))))), so it is just one step to get the head and one step to get tail, but many steps to get last and many steps to get init (all-but-last).
22. Nov 2018 12:19
Forum: Konzepte der Programmiersprachen
Thema: Assignment 1, Task 1, 'non-trivial'
Antworten: 2
Zugriffe: 213

Re: Assignment 1, Task 1, 'non-trivial'

Hey, I think head/tail should be mostly equivalent to head :: tail (although not always as nice).
For example init/last or ++ are probably more than trivial.
14. Okt 2018 15:26
Forum: Konzepte der Programmiersprachen
Thema: WS2018/19
Antworten: 18
Zugriffe: 1184

Re: WS2018/19

Hi, Student hier! Ich sehe den Kurs in Tucan Vorlesungsverzeichnis bei Di 11:40 - 13:20 S202/C110 und Do C120, und ich kann mir die Vorlesungsachen anschauen mit meiner TU-ID und Passwort. Bist du dir sicher, dass du sie nicht sehen kannst?
6. Feb 2018 11:31
Forum: Archiv
Thema: ex11: return value of replace arbitrary
Antworten: 2
Zugriffe: 294

Re: ex11: return value of replace arbitrary

That leaves two possible values: true and false. Also i just noticed, that the task didn't say, that the value should be replaced everywhere, as the second task seems to imply that you should just do it once.
5. Feb 2018 18:12
Forum: Archiv
Thema: ex11: return value of replace arbitrary
Antworten: 2
Zugriffe: 294

ex11: return value of replace arbitrary

The return value of the replace method is not specified.
3. Feb 2018 23:28
Forum: Archiv
Thema: ex11 Pattern
Antworten: 2
Zugriffe: 623

Re: ex11 Pattern

"You may omit the corresponding annotations" means its optional to annotate it, and we do not loose points, if we do annotate it?
31. Jan 2018 14:09
Forum: Archiv
Thema: Assignment 9: Wrong Grading Results
Antworten: 2
Zugriffe: 263

Re: Assignment 9: Wrong Grading Results

In this case you should probably send a mail with your name to Mirko.
EDIT: And maybe check again if the problem is still the there.
25. Jan 2018 17:37
Forum: Archiv
Thema: Exercise 10 Task 3 - CSV
Antworten: 5
Zugriffe: 760

Re: Exercise 10 Task 3 - CSV

Only for the first values. The rate and dependency may be in any order and (probably do not need to exist).

I use PT8H for 8 hours.