演算子: (mathematics, computing) operator

complex (not simple or straightforward)

演算: to calculate

演算: operation

演算機: processor / 演算器: functional unit (e.g. in analog computing)

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

(mathematics, computing) A function or other mapping that carries variables defined on a domain into another variable; operator.

to calculate