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-.. highlight:: cpp
-
-.. _lang-map:
-
-map()
-=====
-
-Re-maps a number from one range to another.
-
-.. contents:: Contents
-   :local:
-
-Library Documentation
----------------------
-
-.. doxygenfunction:: map
-
-Discussion
-----------
-
-``map()`` does not constrain values to within the range, because
-out-of-range values are sometimes intended and useful. The
-:ref:`constrain() <lang-constrain>` macro may be used either before or
-after this function, if limits to the ranges are desired.
-
-Note that the "lower bounds" of either range may be larger or smaller
-than the "upper bounds" so that ``map()`` may be used to reverse a
-range of numbers; for example::
-
-    y = map(x, 1, 50, 50, 1);
-
-The function also handles negative numbers well, so that this
-example ::
-
-    y = map(x, 1, 50, 50, -100);
-
-is also valid.
-
-The ``map()`` function uses integer math (its arguments and return
-values all have type :ref:`long <lang-long>`), so it will not generate
-fractions, when the math might indicate that it should do so.
-Fractional remainders are truncated, and are not rounded or averaged.
-
-Example
--------
-
-::
-
-    /* Map an ADC reading (12 bits) to 16-bit PWM (0 to 65,535) */
-
-    void setup() {
-        pinMode(0, INPUT_ANALOG);
-        pinMode(9, PWM);
-    }
-
-    void loop() {
-        int val = analogRead(0);
-        val = map(val, 0, 4095, 0, 65535);
-        analogWrite(9, val);
-    }
-
-
-See Also
---------
-
--  :ref:`constrain() <lang-constrain>`
-
-.. include:: cc-attribution.txt