-  `LMSRMarketMaker <#lmsrmarketmaker>`__

   -  `Functions <#lmsrmarketmaker-functions>`__

      -  `calcProfit(\ *address* ``market``, *uint8*
         ``outcomeTokenIndex``, *uint256*
         ``outcomeTokenCount``) <#calcprofitaddress-market-uint8-outcometokenindex-uint256-outcometokencount>`__
      -  `calcCost(\ *address* ``market``, *uint8*
         ``outcomeTokenIndex``, *uint256*
         ``outcomeTokenCount``) <#calccostaddress-market-uint8-outcometokenindex-uint256-outcometokencount>`__
      -  `calcMarginalPrice(\ *address* ``market``, *uint8*
         ``outcomeTokenIndex``) <#calcmarginalpriceaddress-market-uint8-outcometokenindex>`__

LMSRMarketMaker
===============

LMSR market maker contract - Calculates share prices based on share distribution and initial funding
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

-  **Author**: Alan Lu - alan.lu@gnosis.pm
-  **Constructor**: LMSRMarketMaker()
-  This contract does **not** have a fallback function.

LMSRMarketMaker Functions
-------------------------

calcProfit(\ *address* ``market``, *uint8* ``outcomeTokenIndex``, *uint256* ``outcomeTokenCount``)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

-  **State mutability**: ``view``
-  **Signature hash**: ``4091c6a9``

Returns profit for selling given number of outcome tokens

Inputs
^^^^^^

+-----------+-----------------------+----------------------------------+
| type      | name                  | description                      |
+===========+=======================+==================================+
| *address* | ``market``            | Market contract                  |
+-----------+-----------------------+----------------------------------+
| *uint8*   | ``outcomeTokenIndex`` | Index of outcome to sell         |
+-----------+-----------------------+----------------------------------+
| *uint256* | ``outcomeTokenCount`` | Number of outcome tokens to sell |
+-----------+-----------------------+----------------------------------+

Outputs
^^^^^^^

+-----------+------------+-------------+
| type      | name       | description |
+===========+============+=============+
| *uint256* | ``profit`` | Profit      |
+-----------+------------+-------------+

calcCost(\ *address* ``market``, *uint8* ``outcomeTokenIndex``, *uint256* ``outcomeTokenCount``)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

-  **State mutability**: ``view``
-  **Signature hash**: ``bd8ff817``

Returns cost to buy given number of outcome tokens

.. _inputs-1:

Inputs
^^^^^^

+-----------+-----------------------+---------------------------------+
| type      | name                  | description                     |
+===========+=======================+=================================+
| *address* | ``market``            | Market contract                 |
+-----------+-----------------------+---------------------------------+
| *uint8*   | ``outcomeTokenIndex`` | Index of outcome to buy         |
+-----------+-----------------------+---------------------------------+
| *uint256* | ``outcomeTokenCount`` | Number of outcome tokens to buy |
+-----------+-----------------------+---------------------------------+

.. _outputs-1:

Outputs
^^^^^^^

+-----------+----------+-------------+
| type      | name     | description |
+===========+==========+=============+
| *uint256* | ``cost`` | Cost        |
+-----------+----------+-------------+

calcMarginalPrice(\ *address* ``market``, *uint8* ``outcomeTokenIndex``)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

-  **State mutability**: ``view``
-  **Signature hash**: ``d812d346``

Returns marginal price of an outcome

.. _inputs-2:

Inputs
^^^^^^

+-----------------------+-----------------------+-----------------------+
| type                  | name                  | description           |
+=======================+=======================+=======================+
| *address*             | ``market``            | Market contract       |
+-----------------------+-----------------------+-----------------------+
| *uint8*               | ``outcomeTokenIndex`` | Index of outcome to   |
|                       |                       | determine marginal    |
|                       |                       | price of              |
+-----------------------+-----------------------+-----------------------+

.. _outputs-2:

Outputs
^^^^^^^

+-----------+-----------+------------------------------------------------------+
| type      | name      | description                                          |
+===========+===========+======================================================+
| *uint256* | ``price`` | Marginal price of an outcome as a fixed point number |
+-----------+-----------+------------------------------------------------------+