I have a simple question, but it is hard to google it. I have this equation here:
$$y(t, x) = \sum_{i=1}^{d}(|x_i| \wedge t)^{2} $$
Here $x$ is a size $d$ signal and $t$ is just a scalar. I am not sure how to read that equation in english... I understand everything except for how they use the $\wedge$ here...
If context helps, this is part of a cost function, based on a threshold $t$ that is selected, for your vector $x$.
$|x_i|\wedge t$ probably means $\min(|x_i|,t)$.
There are three usual meanings of the wedge ($\wedge$) symbol: logical conjunction, some sort of "wedge product" and the minimum function. As both $|x_i|$ and $t$ are scalars, we can rule out the first two possibilities. So the minimum function is the most plausible interpretation I can think of. But certainly, you should look at the context of your equation to make sure that this is a correct interpretation.