operant

In a sentence

• L'estudiant era molt operant en el curs de matemàtiques.

  The student was very effective in the mathematics course.

  Here, 'operant' is used in the sense of being effective or capable in performing tasks or solving problems.

• El principi operant de la màquina es basa en la llei de la física.

  The operating principle of the machine is based on the law of physics.

  In this sentence, 'operant' describes the principle or fundamental functionality that allows the machine to work.

• En psicologia, l'entrenament operant és una tècnica per modificar comportaments.

  In psychology, operant conditioning is a technique for modifying behaviors.

  Here, 'operant' is used as a technical term in psychology, referring to the concept of operant conditioning.