.. _func-ProductLinearExp:

================
ProductLinearExp
================

.. index:: ProductLinearExp

Description
-----------

This fit function computes the product of a linear and exponential
function. See :ref:`ExpDecay <func-ExpDecay>` and
:ref:`LinearBackground <func-LinearBackground>` for details on the component
functions.

.. math:: \left(\mbox{A}_0 + \mbox{A}_1 x\right)\cdot h\cdot e^{-\frac{x}{\tau}}

This function may be used with the :ref:`algm-Fit` algorithm. However, it
was originally added to Mantid as a named function for the purposes of
detector efficiency calibration.

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