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noun. tan· gent ˈtan-jənt. Synonyms of tangent. 1. : an abrupt change of course : digression. the speaker went off on a tangent. 2. a. : the trigonometric function that for an acute angle is the ratio between the leg opposite to the angle when it is considered part of a right triangle and the leg adjacent.
Sine, Cosine and Tangent (often shortened to sin, cos and tan) are each a ratio of sides of a right angled triangle: For a given angle θ each ratio stays the same. no matter how big or small the triangle is. To calculate them: Divide the length of one side by another side. Example: What is the sine of 35°?
In geometry, the tangent line (or simply tangent) to a plane curve at a given point is, intuitively, the straight line that "just touches" the curve at that point.
Tangent, written as tan (θ), is one of the six fundamental trigonometric functions. Tangent definition. Tangent, like other trigonometric functions, is typically defined in terms of right triangles and in terms of the unit circle.
The tangent is a straight line that touches the circle at only one point. It is perpendicular to the radius at the point of tangency. It never enters the circle's interior. The lengths of two tangents to a circle from the same external point are equal.
tangent, one of the six trigonometric functions, which, in a right triangle ABC, for an angle A, is tan A = length of side opposite angle A/ length of side adjacent to angle A. The other five trigonometric functions are sine (sin), cosine (cos), secant (sec), cosecant (csc), and cotangent (cot).
The tangent function is defined by tanx= (sinx)/ (cosx), (1) where sinx is the sine function and cosx is the cosine function. The notation tgx is sometimes also used (Gradshteyn and Ryzhik 2000, p. xxix).
In Geometry, the tangent is defined as a line touching circles or an ellipse at only one point. Suppose a line touches the curve at P, then the point “P” is called the point of tangency. In other words, it is defined as the line which represents the slope of a curve at that point.
In geometry, a tangent is a line or plane that touches a curve or curved surface at one point only. Tangent lines to circles are perpendicular to the radius at the point of tangency, and the tangent line to an ellipse is the line that touches it at exactly one point.
In a right triangle, the tangent of an angle is the opposite side over the adjacent side. tan. x. =. O. A. For more on this see Trigonometry tangent function. Definition and meaning of the math word tangent.