圆函数

Traditional form:

圓函數

Pinyin (reading):

yuánhánshù

Definitions:

• the trigonometric functions

Characters:

• 圆 - circle; circular, round; complete
• 函 - correspondence; a case, a box
• 数 - count, number, several

Traditional characters:

• 圓 - circle; circular, round; complete
• 函 - correspondence; a case, a box
• 數 - count, number, several