Revert "Removing math from impl content since they don't render prope…

…rly with needextract"

This reverts commit 5185d03.

armi/physics/neutronics/globalFlux/globalFluxInterface.py

@@ -132,7 +132,7 @@ def checkEnergyBalance(self):
             global power from the flux solve is computed by summing the
             block-wise power in the core. This value is then compared to the
             user-specified power and raises an error if relative difference is
-            above 1e-5.
+            above :math:`10^{-5}`.
         """
         powerGenerated = (
             self.r.core.calcTotalParam(
@@ -1244,35 +1244,30 @@ def computeDpaRate(mgFlux, dpaXs):
         :id: I_ARMI_FLUX_DPA
         :implements: R_ARMI_FLUX_DPA
 
-        This method calculates DPA rates using the inputted multigroup flux and
-        DPA cross sections. Is simply does the operation: ``dpaPerSecond =
-        \sum_{g} mgFlux[g] * dpaXs[g]``. Where ``dpaPerSecond`` is the returned
-        DPA rate, ``mgFlux`` is the inputted multigroup flux, and ``dpaXS`` is
-        the inputted DPA cross section.
+        This method calculates DPA rates using the inputted multigroup flux and DPA cross sections.
+        Displacements calculated by displacement XS:
 
-    Displacements calculated by displacement XS:
+        .. math::
 
-    .. math::
+            \text{Displacement rate} &= \phi N_{\text{HT9}} \sigma  \\
+            &= (\#/\text{cm}^2/s) \cdot (1/cm^3) \cdot (\text{barn})\\
+            &= (\#/\text{cm}^5/s) \cdot  \text{(barn)} * 10^{-24} \text{cm}^2/\text{barn} \\
+            &= \#/\text{cm}^3/s
 
-        \text{Displacement rate} &= \phi N_{\text{HT9}} \sigma  \\
-        &= (\#/\text{cm}^2/s) \cdot (1/cm^3) \cdot (\text{barn})\\
-        &= (\#/\text{cm}^5/s) \cdot  \text{(barn)} * 10^{-24} \text{cm}^2/\text{barn} \\
-        &= \#/\text{cm}^3/s
 
+        ::
 
-    ::
+            DPA rate = displacement density rate / (number of atoms/cc)
+                    = dr [#/cm^3/s] / (nHT9)  [1/cm^3]
+                    = flux * barn * 1e-24
 
-        DPA rate = displacement density rate / (number of atoms/cc)
-                = dr [#/cm^3/s] / (nHT9)  [1/cm^3]
-                = flux * barn * 1e-24
 
+        .. math::
 
-    .. math::
+            \frac{\text{dpa}}{s}  = \frac{\phi N \sigma}{N} = \phi * \sigma
 
-        \frac{\text{dpa}}{s}  = \frac{\phi N \sigma}{N} = \phi * \sigma
-
-    the Number density of the structural material cancels out. It's in the macroscopic
-    XS and in the original number of atoms.
+        the Number density of the structural material cancels out. It's in the macroscopic
+        XS and in the original number of atoms.
 
     Raises
     ------
@@ -1334,34 +1329,34 @@ def calcReactionRates(obj, keff, lib):
         :implements: R_ARMI_FLUX_RX_RATES
 
         This method computes 1-group reaction rates for the inputted
-        :py:class:`ArmiObject <armi.reactor.composites.ArmiObject>`. These
+        :py:class:`ArmiObject <armi.reactor.composites.ArmiObject>` These
         reaction rates include:
 
         * fission
         * nufission
         * n2n
         * absorption
 
-    Scatter could be added as well. This function is quite slow so it is
-    skipped for now as it is uncommonly needed.
+        Scatter could be added as well. This function is quite slow so it is
+        skipped for now as it is uncommonly needed.
 
-    Reaction rates are:
+        Reaction rates are:
 
-    .. math::
+        .. math::
 
-        \Sigma \phi = \sum_{\text{nuclides}} \sum_{\text{energy}} \Sigma
-        \phi
+            \Sigma \phi = \sum_{\text{nuclides}} \sum_{\text{energy}} \Sigma
+            \phi
 
-    The units of :math:`N \sigma \phi` are::
+        The units of :math:`N \sigma \phi` are::
 
-        [#/bn-cm] * [bn] * [#/cm^2/s] = [#/cm^3/s]
+            [#/bn-cm] * [bn] * [#/cm^2/s] = [#/cm^3/s]
 
-    The group-averaged microscopic cross section is:
+        The group-averaged microscopic cross section is:
 
-    .. math::
+        .. math::
 
-        \sigma_g = \frac{\int_{E g}^{E_{g+1}} \phi(E)  \sigma(E)
-        dE}{\int_{E_g}^{E_{g+1}} \phi(E) dE}
+            \sigma_g = \frac{\int_{E g}^{E_{g+1}} \phi(E)  \sigma(E)
+            dE}{\int_{E_g}^{E_{g+1}} \phi(E) dE}
     """
     rate = {}
     for simple in RX_PARAM_NAMES: