MaskTools: RP notation for sqrt ?

[WorBry]

Sorry for my ignorance, but in MaskTools (reverse polish) what is the notation for square root, as, for example, translation of the equation:

sqrt( (x^2) + (y^2) )

Obviously tried sqrt (and ROOT)

Cheers.

[Didée]

I'm not sure ATM if a notation for square root exists.

What works in any case is building the x-root manually, e.g. ( (x^2) + (y^2) ) ^ (1/2)

expr = "x 2 ^ y 2 ^ + 1 2 / ^"

[Motenai Yoda]

according to masktools documentation sqrt operator is still missing.

[WorBry]

Thanks both :)