Auxiliary Utilities¶

The package also provides other convenience tools.

no_op(...)¶

This function accepts arbitrary arguments and returns nothing.

It is mainly used as a callback function where you don’t really need to callback to do anything.

shrink(x, t)¶

Compute the following function:

$(x, t) \mapsto \begin{cases} x - t & (x > t) \\ 0 & (|x| \le t) \\ x + t & (x < -t) \end{cases}$

Here, x can be either a scalar or an array (for vectorized computation).