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VB.NET Language in a Nutshell, Second Edition by Steven Roman PhD, Paul Lomax, Ron Petrusha

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Name

Sin Function

Class

System.Math

Syntax

Sin(a)
a (required; Numeric)

An angle expressed in radians

Return Value

A Double containing the sine of an angle

Description

Returns the ratio of two sides of a right triangle in the range -1 to 1

Rules at a Glance

  • The ratio is determined by dividing the length of the side opposite the angle by the length of the hypotenuse.

  • This is a Shared member, so it can be used without creating any objects.

Programming Tips and Gotchas

  • You can convert degrees to radians using the formula:

    radians = degrees * (pi/180)
  • You can convert radians to degrees using the formula:

    degrees = radians * (180/pi)

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