# k programming language

a flavor of {apl}, i understand?

# resources

=> https://codeberg.org/ngn/k ngn/k
=> https://ngn.codeberg.page/k/# ngn/k online

# notes from eris' k class

operator precedence: always from right to left.

types:

* integer (list of)
* float (list of)
* character (list of/string)
* dictionary (list of/table)
* symbol (list of)

lists are enclosed between parenthesis, and items separated with semicolons

```
(1;2;3)
("a";"b";"c")
```

equivalent to:

```
1 2 3
"abc"
```


assignment is done with :

```
a: 1
b: 1 2 3
```

## verbs

minus sign (-), unary is negate, binary is subtraction:

```
- 1 2 3
result -1 -2 -3

2 - 1
result 1
```

plus sign (+), binary is addition:

```
1 + 2
result 3
```

asterisk (*), unary is "first", binary is multiplication

```
2 * 3
result 6

* 3 2 1
result 3
```

vertical bar (|), unary is reverse, binary is mod?

```
|1 2 3
result 3 2 1
```

with colon (:) one can force the use of the unary mode, e.g.

```
*: 3 2 1
```

exclamation mark (!) applied to an integer produces the natural numbers from 0 to that integer minus one:

```
!5
result 0 1 2 3 4
```

percent sign (%) is division