sine

7 entries found for sine.
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sine sine curve sine die sine qua non sine wave causa sine qua non nil sine numine

Main Entry: sine
Pronunciation: 'sIn
Function: noun
Etymology: Medieval Latin sinus, from Latin, curve
1 : the trigonometric function that for an acute angle is the ratio between the leg opposite the angle when it is considered part of a right triangle and the hypotenuse
2 : a trigonometric function sin θ that for all real numbers θ is exactly equal to the sine of an angle of measure θ in radians and that is given by the sum of the alternating series sin θ = θ - θ³/3! + θ⁵/5! - θ⁷/7! + θ⁹/9! - . . .