Arctan2

Supported in: Batch, Streaming

Returns the angle θ between the ray from the origin to the point (x, y) and the positive x-axis, confined to −π<θ<=π.

Expression categories: Numeric

Declared arguments

• Angle unit - Output angle unit which is either degrees or radians.
  Enum<Degrees, Radians>
• X - X coordinate value.
  Expression<Double | Float>
• Y - Y coordinate value.
  Expression<Double | Float>

Output type: Double

Examples

Example 1: Base case

Argument values:

• Angle unit: degrees
• X: x
• Y: y

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Example 2: Null case

Argument values:

• Angle unit: radians
• X: null
• Y: 0.0

Output: null

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