Syntax for Equations formulas - documentation ask

[Florida]

For the Equations option in the Distort filter, what are the functions/operators allowed? There seems to be no documentation on what is accepted. I see transcendentals but not much else besides +-*/^ basic math. I sure could use modulus and logs of some kind.

[Alfred]

36 minutes ago, Florida said:

For the Equations option in the Distort filter, what are the functions/operators allowed? There seems to be no documentation on what is accepted.

Please see Affinity Photo Help: Expressions for field input

36 minutes ago, Florida said:

I see transcendentals but not much else besides +-*/^ basic math. I sure could use modulus and logs of some kind.

There’s a modulus function, irem(x,y), but I don’t see any mention of logs.

[Florida]

I tried some of (often barely documented) functions in the Procedural Textures help and they seem to work, although the output is sometimes strange, so maybe they are not all that well supported.

 

The link you provided seems another set of options to try. Thanks.