Reports:Tasks not implemented in J
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Contents
Not implemented[edit]
These are currently not implemented in J. Please implement some if you can. If any tasks are not possible or too complex in J, they should not be on this list. To mark a task as such, add {{omit from|J}}, preserving the capitalization of the language, to that task. It will appear below under the "Not Considered" section.
A
B
C
- Chaocipher
- Chat server
- Chernick's Carmichael numbers
- Church Numerals
- Color of a screen pixel
- Colour pinstripe/Printer
- Compiler/AST interpreter
- Compiler/code generator
- Compiler/lexical analyzer
- Compiler/syntax analyzer
- Compiler/virtual machine interpreter
- Create a file on magnetic tape
- Create an object at a given address
- Cyclotomic Polynomial
D
F
I
K
M
N
P
R
S
- SOAP
- SQL-based authentication
- Secure temporary file
- Send email
- Sequence: nth number with exactly n divisors
- Sequence: smallest number greater than previous term with exactly n divisors
- Sequence: smallest number with exactly n divisors
- Sexy primes
- Shortest common supersequence
- Sierpinski pentagon
- Simulate input/Keyboard
- Simulate input/Mouse
- Smarandache prime-digital sequence
- Sokoban
- Solve a Hidato puzzle
- Solve a Hopido puzzle
- Solve a Numbrix puzzle
- Sorting algorithms/Sleep sort
- Speech synthesis
- Spelling of ordinal numbers
- Spinning rod animation/Text
- Stirling numbers of the first kind
- Stirling numbers of the second kind
- Stream Merge
- Suffixation of decimal numbers
- Sum and Product Puzzle
- Sunflower fractal
T
Draft tasks without implementation[edit]
These tasks are drafts, meaning they largely need more work to turn them into full tasks. Perhaps you can help by trying to implement them in J (after all, one of the key requirements for a task being non-draft is multiple implementations, preferably in widely different languages) but be aware that this may be difficult because of lack of definition of the task itself.
2
A
C
- Check input device is a terminal
- Checksumcolor
- Chemical Calculator
- Chess player
- Circular primes
- Code segment unload
- Color wheel
- Combinations with repetitions/Square Digit Chain
- Compiler/ Verifying Syntax
- Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N1, Contined Fraction N2)
- Copy stdin to stdout
D
F
H
I
L
- Latin Squares in reduced form/Randomizing using Jacobson and Matthews’ Technique
- Launch rocket with countdown and acceleration in stdout
- Length of an arc between two angles
- Levenshtein distance/Alignment
- Line circle intersection
- Logistic Curve Fitting in Epidemiology
- Long literals, with continuations
M
P
R
- Railway circuit
- Random Latin Squares
- Raster bars
- Readline interface
- Remote agent/Agent interface
- Remote agent/Agent logic
- Remote agent/Simulation
- Resistance Calculator
- Resistance Network Calculator
- Robots
- Rosetta Code/List authors of task descriptions
- Rosetta Code/Rank languages by number of users
- Rosetta Code/Run examples
- Rosetta Code/Tasks sorted by average lines of code
- Rosetta Code/Tasks without examples
- Run as a daemon or service
S
T
U
V
Requiring Attention[edit]
Examples[edit]
These tasks have implementations in J, but somebody, somewhere, decided that the example implementation was faulty or in some other way requiring attention. If you're familiar with the task and language, please consider reviewing/correcting the example and removing the notice.
Other pages[edit]
These are other pages related to J which require attention; with your knowledge and assistance, we can improve the quality of the site's content.
No pages found.
Not Considered[edit]
These tasks are not generally counted toward "unimplemented", as somebody, somewhere, decided that J was inappropriate for these tasks, or implementations of them would be unenlightening. Feel free to try your hand at them anyway.
End of List[edit]
Again, feel free to try your hand at any of the tasks listed on this page.
