Actually, I'm using LyX, so I put \usepackage in the preamble and then simply used \mathbb with a 1 inside a formula box. ... <看更多>

Indicator function #19481 ... how to add pretty printing, although I was able to implement latex printing (I did not commit it though). ... <看更多>

There are a variety of ways, the minimal keystroke one: Ivec <- 0+(vec>0). Saves a couple of keystrokes over: as.numeric(vec>0) . ... <看更多>

Also, how do I LaTeX? Johan Commelin (Jan 10 2019 at 09:07): LaTeX with double dollars: $$ blah $$. Joey van Langen ( ... ... <看更多>

Indicator Function and Convolution Integrals Review. Step by Step Calculus. Step by Step Calculus. 168 subscribers. Subscribe. ... <看更多>

The indicator function of the rational numbers is also known as Dirichlet function. Dirichlet was the first to study this types of functions ... ... <看更多>