94 lines
1.1 KiB
Plaintext
94 lines
1.1 KiB
Plaintext
# k programming language
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a flavor of {apl}, i understand?
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# resources
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=> https://codeberg.org/ngn/k ngn/k
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=> https://ngn.codeberg.page/k/# ngn/k online
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# notes from eris' k class
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operator precedence: always from right to left.
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types:
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* integer (list of)
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* float (list of)
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* character (list of/string)
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* dictionary (list of/table)
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* symbol (list of)
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lists are enclosed between parenthesis, and items separated with semicolons
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```
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(1;2;3)
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("a";"b";"c")
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```
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equivalent to:
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```
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1 2 3
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"abc"
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```
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assignment is done with :
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```
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a: 1
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b: 1 2 3
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```
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## verbs
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minus sign (-), unary is negate, binary is subtraction:
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```
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- 1 2 3
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result -1 -2 -3
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2 - 1
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result 1
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```
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plus sign (+), binary is addition:
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```
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1 + 2
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result 3
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```
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asterisk (*), unary is "first", binary is multiplication
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```
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2 * 3
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result 6
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* 3 2 1
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result 3
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```
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vertical bar (|), unary is reverse, binary is mod?
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```
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|1 2 3
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result 3 2 1
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```
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with colon (:) one can force the use of the unary mode, e.g.
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```
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*: 3 2 1
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```
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exclamation mark (!) applied to an integer produces the natural numbers from 0 to that integer minus one:
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```
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!5
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result 0 1 2 3 4
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```
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percent sign (%) is division
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