Straight Sine

Direct sine is one of the basic trigonometric functions that describes the ratio of two sides of a right triangle. It is denoted sin r and has the following mathematical expression:

sin r = ops/apr.

where opt is the side of the right triangle lying opposite the angle R, an is the perpendicular to this side, and psh is the length of the other side opposite the angle R.

The direct sine ranges from zero to one and is the inverse function of the sine, which describes the ratio of the sides of a right triangle that are not adjacent.

The use of direct sine in scientific and engineering problems is widespread. For example, in straight mechanics, sine is used to describe the deformation of straight rods, which makes it possible to calculate their elastic properties. In electrical engineering, direct sine is used in problems of two-mass kinematics