trending docs: fixed maths formulas format again.

Change-Id: Ia9031e720bddf783a26d25de1ed189bf3b09312f
Signed-off-by: Maciek Konstantynowicz <mkonstan@cisco.com>

1 files changed, 25 insertions, 25 deletions

diff --git a/docs/cpta/methodology/index.rst b/docs/cpta/methodology/index.rst
index 35c438d8b6..d89a6d7aed 100644
--- a/docs/cpta/methodology/index.rst
+++ b/docs/cpta/methodology/index.rst
@@ -94,16 +94,16 @@ over the rolling window of last <N> sets of historical measurement data:
 Outlier Detection
 `````````````````
 
-Outlier evaluation of test result of value :math:`X_n` follows the
-definition from previous section:
+Outlier evaluation of test result of value *X* follows the definition
+from previous section:
 
-+--------------------------------------------+----------------------+
-| Outlier Evaluation Formula                 | Evaluation Result    |
-+============================================+======================+
-| :math:`X_n < \left( Q1 - 1.5 IQR \right)`  | Outlier              |
-+--------------------------------------------+----------------------+
-| :math:`X_n >= \left( Q1 - 1.5 IQR \right)` | Valid (For Trending) |
-+--------------------------------------------+----------------------+
++----------------------------+----------------------+
+| Outlier Evaluation Formula | Evaluation Result    |
++============================+======================+
+| X < (Q1 - 1.5 * IQR)       | Outlier              |
++----------------------------+----------------------+
+| X >= (Q1 - 1.5 * IQR)      | Valid (For Trending) |
++----------------------------+----------------------+
 
 Anomaly Detection
 `````````````````
@@ -112,15 +112,15 @@ To verify compliance of test result of valid value <X> against defined
 trend metrics and detect anomalies, three simple evaluation formulas are
 used:
 
-+---------------------------------------------------------------------------+-----------------------------+-------------------+
-| Anomaly Evaluation Formula                                                | Compliance Confidence Level | Evaluation Result |
-+===========================================================================+=============================+===================+
-| :math:`\left( TMM - 3 TMSD \right) <= X_n <= \left( TMM + 3 TMSD \right)` | 99.73%                      | Normal            |
-+---------------------------------------------------------------------------+-----------------------------+-------------------+
-| :math:`X_n < \left( TMM - 3 TMSD \right)`                                 | Anomaly                     | Regression        |
-+---------------------------------------------------------------------------+-----------------------------+-------------------+
-| :math:`X_n > \left( TMM + 3 TMSD \right)`                                 | Anomaly                     | Progression       |
-+---------------------------------------------------------------------------+-----------------------------+-------------------+
++-------------------------------------------+-----------------------------+-------------------+
+| Anomaly Evaluation Formula                | Compliance Confidence Level | Evaluation Result |
++===========================================+=============================+===================+
+| (TMM - 3 * TMSD) <= X <= (TMM + 3 * TMSD) | 99.73%                      | Normal            |
++-------------------------------------------+-----------------------------+-------------------+
+| X < (TMM - 3 * TMSD)                      | Anomaly                     | Regression        |
++-------------------------------------------+-----------------------------+-------------------+
+| X > (TMM + 3 * TMSD)                      | Anomaly                     | Progression       |
++-------------------------------------------+-----------------------------+-------------------+
 
 TMM is used for the central trend reference point instead of TMA as it
 is more robust to anomalies.
@@ -135,13 +135,13 @@ ago, TMM[last - 1week] and to the maximum of trend values over last
 quarter except last week, max(TMM[(last - 3mths)..(last - 1week)]),
 respectively. This results in following trend compliance calculations:
 
-+-------------------------+---------------------------------------------+--------------------------------+------------------------------------------------------------------------------------------------------------+
-| Trend Compliance Metric | Change Formula                              | Value                          | Reference                                                                                                  |
-+=========================+=============================================+================================+============================================================================================================+
-| Short-Term Change       | :math:`\frac{Value - Reference}{Reference}` | :math:`TMM \left[ last \right] | :math:`TMM \left[ last - 1 week \right]`                                                                   |
-+-------------------------+---------------------------------------------+--------------------------------+------------------------------------------------------------------------------------------------------------+
-| Long-Term Change        | :math:`\frac{Value - Reference}{Reference}` | :math:`TMM \left[ last \right] | :math:`max \left( TMM \left[ \left( last - 3 mths \right) .. \left( last - 1 week \right) \right] \right)` |
-+-------------------------+---------------------------------------------+--------------------------------+------------------------------------------------------------------------------------------------------------+
++-------------------------+---------------------------------+-----------+------------------------------------------+
+| Trend Compliance Metric | Trend Change Formula            | Value     | Reference                                |
++=========================+=================================+===========+==========================================+
+| Short-Term Change       | (Value - Reference) / Reference | TMM[last] | TMM[last - 1week]                        |
++-------------------------+---------------------------------+-----------+------------------------------------------+
+| Long-Term Change        | (Value - Reference) / Reference | TMM[last] | max(TMM[(last - 3mths)..(last - 1week)]) |
++-------------------------+---------------------------------+-----------+------------------------------------------+
 
 Trend Presentation
 ------------------