Expression designer error

hello there just a simple expression it keeps on giving me erros pls help!

Not on a pc right now, so i can’t test…
You are missing a parenthesis at the end of the equation, add a " ) " .
Also, i’m not sure “and” is correct, try use “&” instead.
Or do: if(0<x<1, … , …)

or you can delete this open parenthesis