Function reference · Trigonometry

`atan2`

Computes the quadrant-aware two-argument arctangent atan2(y,x).

atan2 uses the signs of both coordinates to return an angle in the range (-pi,pi]. Axis cases and many exact ratios are simplified symbolically.

Examples

These examples use Nerdamer Notation.

Return the first-quadrant angle.

atan2(1,1)
// → (1/4)*pi

Handle the positive y-axis.

atan2(1,0)
// → (1/2)*pi

The same operation is available through the interfaces below.

Use this form inside input passed to nerdamer(...).

atan2(arg1, arg2)

Call the operation through the default nerdamer import.

nerdamer.atan2(y: ExpressionInput, x: ExpressionInput): Expression

Name	Type	Description
`y`	`ExpressionInput`	The y-coordinate.
`x`	`ExpressionInput`	The x-coordinate.

Expression — The angle in radians.