R challenge - contour in a matrix

As part of what will hopefully become a larger post, I’m interested in finding an R way to achieve the following: given an n x n matrix of zeroes with a single non-zero element of some value v, …

ByRow optimizations in Julia

I’m still fairly new to Julia, even though I’ve been trying to learn it for a few years. It’s extremely powerful (fast, expressive, … whatever metric you want to use) but with …