APL is actually not inherently so bad, because at least the operators have some vague relationship to what they're doing and are all distinct. I can't read J at all because in attempting to embed the APL operator space in ASCII they went in for multiple token operators that can be modified (so =, =., and =: are all different, and actually quite different IIRC).

A better way of doing this is Fortress, which tries to use mathematical notation when possible but doesn't try to compress it as small as possible.