.. _auto_curves_subtract_pairs:

*SUBTRACT PAIRS OF CURVES*
==========================

Subtracts paired curves element-wise between two curve groups, producing a new curve group where each output curve is the difference (Group 1 minus Group 2) of the corresponding pair. Use this worker when you need to compute the residual or delta between two matched sets of time-history or XY curves.

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

Classification: **process**.

Tagged: ``batch``, ``curve_pair``, ``delta``, ``difference``, ``residual``, ``subtract``, ``time_history``, ``xy_curve``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Curve 1
     - curve_group1
     - vector
     - —
     - 
     - First curve group (minuend); accepts one or more XY/time-history curves — each curve in this group will have the corresponding curve from Group 2 subtracted from it.
   * - Curve 2
     - curve_group2
     - vector
     - —
     - 
     - Second curve group (subtrahend); must contain the same number of curves as Group 1 — each curve is subtracted element-wise from the paired curve in Group 1.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - curves_subtract_pairs_output_1
     - curves_subtract_pairs_output_1
     - vector
     - Resulting curve group after element-wise subtraction (Group 1 − Group 2); one output curve per input pair, sharing the same X-axis domain as the inputs.

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

- data.curve.pair

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

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

.. raw:: html

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   Auto-generated from <code>transformation</code> schema. Worker id: <code>curves_subtract_pairs</code>. Schema hash: <code>4af041e219ae</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>