mlochbaum / singeli

High-level interface for low-level programming

Array programming language user, designer, and implementer. Co-developer of Jd and former performance specialist at Dyalog. Skilled with a yo-yo. See my Github homepage for an overview of the repositories here. Also working on ngn/k at Codeberg.

singeli's Issues

Float2 precision bug

I think that float2 may have a bug. It seems to have inaccurate results earlier than it should. There is also a possibility this is just a printing issue. Essentially, I wrote a program with float2 and then with big nat and got different results. I am still very much a beginner so I wouldn't be surprised if something else is wrong.

Float2 version in BQN Repl

BigNat version Note: does not actually run on web repl, requires cbqn

Both of these just copied the needed functions from the related .bqn files.
The float2 version fails because it generally has slightly off answers that I believe should fit within it's range.
This code and test case comes from a rosalind problem where bignat passes, but float2 fails.

For the current code these are the outputs:
float2 - 353368918335207361428
bignat - 353368918335207375428

2 digits are different here: 61 -> 75

The final value here has 69 binary digits and is the largest number generated, so I don't think there should be any precision loss with float2.

What license is this code shared under?

If this code is released under a free software license, I would like to package it for GNU/Guix. However, I don't see a license file, nor a github "license" field.

What license is this code meant to wear?