1. (noun) function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle

• circular function

1. (noun) function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle

• arc cosecant
• arccosecant
• inverse cosecant
• arc cosine
• arccos
• arccosine
• inverse cosine
• arc cotangent
• arccotangent
• inverse cotangent
• arc secant
• arcsec
• arcsecant
• inverse secant
• arc sine
• arcsin
• arcsine
• inverse sine
• arc tangent
• arctan
• arctangent
• inverse tangent
• cos
• cosine
• cosec
• cosecant
• cotan
• cotangent
• sec
• secant
• sin
• sine
• tan
• tangent

1. (noun) function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle

• function
• map
• mapping
• mathematical function
• single-valued function