Class Asin

Namespace

YndigoBlue.Velocity.Functions

Assembly

YndigoBlue.Velocity.dll

Represents the ASIN (arcsine) inverse trigonometric function that calculates the angle whose sine is the input.

public class Asin : Function, ICheckItem, IDefaultItem, IFilterItem, IElement

Inheritance

object

Function

Asin

Implements

ICheckItem

IDefaultItem

IFilterItem

IElement

Remarks

The ASIN function calculates the arcsine (inverse sine) of a value and returns an angle in radians. The input value must be between -1 and 1 (inclusive); values outside this range will produce an error. The result is an angle between -pi/2 and pi/2 radians. Use DEGREES to convert the result to degrees if needed. This is useful for angle calculations and inverse trigonometric operations.

Examples

Calculate the arcsine of each normalized sensor reading:

var schema = manager.LoadSchema("telemetry");
var readings = schema["readings"];

var query = new Query()
    .Select([ readings["id"], new Expression("asin_value", new Asin(readings["normalized"])) ])
    .From(readings);

var results = manager.Retrieve(query);

Constructors

Asin(IEnumerable<IElement>)

Initializes a new instance of ASIN for a composed expression (e.g. ASIN(col / divisor)).

Asin(IElement)

Initializes a new instance of ASIN for any element.

Asin(Column)

Initializes a new instance of ASIN for a column.

Asin(Expression)

Initializes a new instance of ASIN for an expression.