(antiseek! place target (? step-by 1))
  place: a place
  target: any form
  step-by: any form (optional)
M

Moves a number away from another number, in place.

(antiseek! x 16) is equivalent to (= x (antiseek x 16)), except that x is only evaluated once.

See also: antiseek

seek!
clamp!