Dyalog APL subset in Rust

morfal · April 13, 2024, 9:44pm

Hi! This is a learning project. I would really appreciate if you drop a comment on my PR.

Thanks!

github.com/NamesMark/apiel

v.0.1.0 Reviews and comments

NamesMark:main ← NamesMark:feature

opened 02:44PM - 13 Apr 24 UTC

NamesMark

+1516 -24

Hi! I would really love to hear your feedback :) ## Usage examples ``` //… Dyadic op. Division: vector by scalar >>> 5 25 125 ÷ 5 Result: [1, 5, 25] // Dyadic op. Addition: vector on vector >>> 1 2 3 + 4 5 6 Result: [5, 7, 9] // Monadic op. Conjugate >>> + 1 2 3 Result: [1, 2, 3] // Monadic op. Negation >>> - 1 2 3 Result: [-1, -2, -3] // Dyadic op. Multiplication >>> 1 2 3 × 2 4 6 Result: [2, 8, 18] // Dyadic op. Power >>> 1 2 3 * 2 4 6 Result: [1, 16, 729] // Monadic op. Exponentiation >>> * 1 2 3 Result: [2, 7, 20] // Monadic op. Natual logarithm >>> ⍟ 1 2 3 Result: [0, 0, 1] >>> ⍟ 5 10 100 Result: [1, 2, 4] // Dyadic op - Subtraction of vector from scalar >>> 10 - 1 2 3 Result: [9, 8, 7] // Dyadic op - Division of vector by scalar; showcase wrong operand size >>> 20 40 60 ÷ 2 4 Evaluation error at line 1 column 1: '', operands must be of the same size or one must be scalar. // Monadic op - Nat. log >>> ⍟ 10 100 1000 Result: [2, 4, 6] // Monadic op - Maximum >>> ⌈ 3 6 9 1 Result: [9] // Monadic op - Minimum >>> ⌊ 5 10 29 1 Result: [1] ``` Per APL rules, expressions are evaluated from right to left: ``` >>> (1 2 3 + 3 2 1) × 2 Result: [8, 8, 8] >>> 1 2 3 + 3 2 1 × 2 Result: [7, 6, 5] ``` - $⍳$ - generate indices ``` >>> ⍳5 Result: [1.0, 2.0, 3.0, 4.0, 5.0] ``` - $/$ - reduction ``` >>> +/ 2 3 5 9 Result: [19.0] >>> +/⍳5 Result: [15.0] ```

UPD: I got enough reviews by asking people directly, but please take a look at someone else's capstone project. It's gonna make their day

paramagnetic · April 15, 2024, 7:06pm

TL;DR, but one thing that immediately stands out is using raw strings as errors. You shouldn't usually do that.

morfal · April 15, 2024, 7:41pm

Fair I'll redo them with thiserror

system · July 14, 2024, 7:41pm

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Dyalog APL subset in Rust

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