.. _auto_curve_atan:

*CREATE A NEW CURVE BY WHERE Y = ATAN(Y)*
=========================================

Applies the arctangent function element-wise to the y-values of an input curve, producing a new curve where each y = atan(y). Use this worker when you need to transform curve amplitudes through the atan function, for example to compress large dynamic ranges or linearize a signal.

When to use
-----------

Classification: **process**.

Tagged: ``arctangent``, ``atan``, ``curve_transform``, ``element_wise``, ``math``, ``y_transform``.

Inputs
------

.. list-table::
   :header-rows: 1
   :widths: 20 20 20 20 20 20

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Curve 1
     - curve1
     - vector
     - —
     - 
     - Input curve whose y-values will be transformed by atan(); x-values are preserved unchanged. Optional — if omitted the worker passes through with no output.

Outputs
-------

.. list-table::
   :header-rows: 1
   :widths: 20 20 20 20

   * - Label
     - ID
     - Type
     - Description
   * - curve_atan_output_1
     - curve_atan_output_1
     - vector
     - Resulting curve with the same x-values as the input and y-values replaced by atan(y) (output in radians, range −π/2 to π/2).

Disciplines
-----------

- data.curve.transform

Runnable example
----------------

A runnable example is registered for this worker. Open the example workflow on the d3VIEW canvas: `/api/workflow/example?id=curve_atan <https://www.d3view.com/api/workflow/example?id=curve_atan>`_

.. raw:: html

   <hr style="margin-top:2em">
   <p style="font-size:11px;color:#888">
   Auto-generated from <code>transformation</code> schema. Worker id: <code>curve_atan</code>. Schema hash: <code>8be9e5d48ea5</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>