I am using a function with a lot of variables. There are 9 and sometimes more of them. In this case, it is difficult to memorize, which one stays on the, say, fourth position, and which one – on the seventh. I would like to be able to include the variable name into the square brackets of the function as a reminder: what must stay here.

For example, let us define a simple function: `f(x)=x^2+y^3`

. Here is its definition:

```
f(x_,y_):=x^2+y^3;
```

One can, however, call it with `x=5`

and `y=7`

as follows:

```
f((*x=*)5,(*y=*)7)
```

This way reminds me of what should stay in the first and in the second position inside the square brackets.

This works, but I do not like that it looks cumbersome. For perception, it would be much better, if the `(*`

and `*)`

signs are invisible.

Any idea?