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knappa

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knappa
·先月·議論
Unfertilized bird eggs are single cells, fertilized eggs should be multicellular by the time they are laid.
knappa
·先月·議論
Fencepost errors aren't errors if you are actually trying to count fenceposts.
knappa
·2 か月前·議論
It's not processor op-codes, but sure it's part of the software. You wouldn't say that a set of precomputed weights in a numerical integrator aren't part of the software, would you? Or say that the graphics in a game aren't part of the software?
knappa
·3 か月前·議論
Nope. 31% German, 27% Autistic.
knappa
·4 か月前·議論
They said that they were going to be blunt, not terse.
knappa
·9 か月前·議論
It depends which side you are doing the multiplication on? Most linear algebra textbooks work matrix-vector, where the vector is a column vector. In that arrangement, the resulting vector is formed by dot products of the rows of the matrix with the vector.

On the other hand, you see vector-matrix multiplication a lot in other places, for example, the Markov chain literature. There, the vector is a row vector and the resulting vector is formed by dot products of the columns of the matrix with the original vector.
knappa
·9 か月前·議論
I don't know, but I've never had trouble with mud daubers.
knappa
·9 か月前·議論
I'm a mathematician. It's kind of a strange statement since, if we are talking about a matrix, it has two indices not one. Even if we do flatten the matrix to a vector, rows then columns are an almost universal ordering of those two indices and the natural lexicographic ordering would stride down the rows.
knappa
·9 か月前·議論
> Institutional administrators confiscate 50, 60, 70% of every research grant.

Not even the Trump admin is alleging levels of indirect costs that high. See e.g.

https://grants.nih.gov/grants/guide/notice-files/NOT-OD-25-0...

"Yet the average indirect cost rate reported by NIH has averaged between 27% and 28% over time."

and a lot of that is simply because nobody wants to do the detailed accounting for things like: lab electricity usage, janitorial services, misc supplies.

> The result? 90%+ of academic science is fraud.

This is dramatic nonsense; a simple made up number.