excessively, recklessly, randomly

a machine used for performing calculations; a calculator / computer

(linear algebra) triangular matrix

love triangle, eternal triangle / triangle relation, three-cornered relationship

(trigonometry) a trigonometric function

Alternative spelling of 三角関数

a deltoid muscle

spreadsheet - manual calculation of digits in the grids / (computing) spreadsheet - automatic calculation of digits in the grids by using computer.

calculating

(idiomatic) look at someone with fury, show rage in one's eyes