floor and ceil wont work within jit.clip to set max and min - syntax problem

queglay's icon

I am attempting to offset numbers in a jitter matrix, but my expression syntax isn't working.  can anyone spot what im doing wrong with the use of floor and ceil?

exprfill 1 "jit.clip( in[0].p[1] + 0.0100 , @min floor(in[0].p[1]*4)/4 , @max ceil(in[0].p[1]*4)/4 - .02 )"

i get div: bad number

sub: bad number

ceil and floor doen't like me refering to the current cell within it. i dont know how else to do that.
I also tried jit.floor and jit.ceil but they didn't work either.