.. _auto_math_round:

*ROUND THE NUMBER*
==================

Rounds a floating-point number to a specified precision using a configurable rounding mode (half-up, half-down, half-even, or half-odd). Use this worker whenever a workflow needs deterministic numeric rounding before passing values to downstream comparisons, formatting, or reporting steps.

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

Classification: **process**.

Tagged: ``math``, ``numeric``, ``precision``, ``round``, ``rounding``, ``scalar``, ``transformation``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Number
     - number
     - float
     - 1
     - ✓
     - The floating-point value to be rounded; defaults to 1 — replace with the upstream scalar you want to round.
   * - Round Type
     - round_type
     - scalar
     - 1
     - 
     - Number of decimal places (precision) to round to; defaults to 1 (one decimal place) — set to 0 for integer rounding or a higher integer for finer precision.
   * - Mode
     - mode
     - scalar
     - round_up
     - 
     - Rounding strategy applied at the half-way point: 'round_up' (PHP ROUND_HALF_UP), 'round_down' (ROUND_HALF_DOWN), 'round_even' (banker's rounding), or 'round_odd'; defaults to 'round_up'.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - math_round_output_1
     - math_round_output_1
     - scalar
     - The rounded scalar result, returned with the same numeric type as the input and precision defined by round_type.

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=math_round <https://www.d3view.com/api/workflow/example?id=math_round>`_

.. raw:: html

   <hr style="margin-top:2em">
   <p style="font-size:11px;color:#888">
   Auto-generated from <code>transformation</code> schema. Worker id: <code>math_round</code>. Schema hash: <code>9563bb4895bc</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>