noun
circular function; trigonometric function
Mathematical term for functions such as sine, cosine, and tangent. Used in academic and technical contexts.
円関数にはサインやコサインが含まれる。
Circular functions include sine and cosine.
三角関数 is the more common term for trigonometric functions. 円関数 is a less frequent synonym used in some mathematical contexts.
Compound of 円 (circle) and 関数 (function), reflecting the relationship between trigonometric functions and the unit circle.