diff --git a/conda/recipes/mantiddocs/build.sh b/conda/recipes/mantiddocs/build.sh
index 66f3d0424171..f1de26c09ff2 100644
--- a/conda/recipes/mantiddocs/build.sh
+++ b/conda/recipes/mantiddocs/build.sh
@@ -1,34 +1,6 @@
 #!/usr/bin/env bash
 set -ex
 
-# QtHelp docs build needs to start a QApplication so we need an X server on Linux
-XVFB_SERVER_NUM=101
-
-function run_with_xvfb {
-    if [[ $OSTYPE == "linux"* ]]; then
-        # Use -e because a bug on RHEL7 means --error-file produces an error:
-	#   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=337703;msg=2
-        # Use -noreset because of an X Display bug caused by a race condition in xvfb:
-	#  https://gitlab.freedesktop.org/xorg/xserver/-/issues/1102
-        xvfb-run -e /dev/stderr --server-args="-core -noreset -screen 0 640x480x24" \
-        --server-num=${XVFB_SERVER_NUM} $@
-    else
-        eval $@
-    fi
-}
-
-function terminate_xvfb_sessions {
-    if [[ $OSTYPE == "linux"* ]]; then
-        echo "Terminating any existing Xvfb sessions"
-
-        # Kill Xvfb processes
-        killall Xvfb || true
-
-        # Remove Xvfb X server lock files
-        rm -f /tmp/.X${XVFB_SERVER_NUM}-lock || true
-    fi
-}
-
 parent_dir="$(dirname "$RECIPE_DIR")"
 bash "${parent_dir}"/archive_env_logs.sh "$BUILD_PREFIX" "$PREFIX" 'mantiddocs'
 
@@ -65,6 +37,8 @@ cmake --build . --target StandardTestData
 export STANDARD_TEST_DATA_DIR=$SRC_DIR/build/ExternalData/Testing/Data
 echo 'datasearch.directories = '$STANDARD_TEST_DATA_DIR'/UnitTest/;'$STANDARD_TEST_DATA_DIR'/DocTest/' >> $PREFIX/bin/Mantid.properties
 
-run_with_xvfb cmake --build . --target docs-qthelp
-terminate_xvfb_sessions
+# Set QT_QPA_PLATFORM=offscreen so we do not need to run with xvfb. Xvfb hides a lot of debug output
+export QT_QPA_PLATFORM=offscreen
+cmake --build . --target docs-qthelp
+
 cmake --build . --target install
diff --git a/docs/source/algorithms/CalculateDIFC-v1.rst b/docs/source/algorithms/CalculateDIFC-v1.rst
index 277956bc4863..d46ec692b7e2 100644
--- a/docs/source/algorithms/CalculateDIFC-v1.rst
+++ b/docs/source/algorithms/CalculateDIFC-v1.rst
@@ -18,7 +18,7 @@ an instrument.
 Or if OffsetMode is `Signed` :math:`DIFC` will be calculated with the following equation
 for logarithmically binned data:
 
-.. math:: DIFC = \frac{m_n}{h}&(L1 + L2)&2sin\theta & * & (1+|BinWidth|)^{-offset}
+.. math:: DIFC = \frac{m_n}{h} \cdot (L1 + L2) 2 \sin(\theta) \cdot (1+|BinWidth|)^{-offset}
 
 DIFC is used in the equation
 
diff --git a/docs/source/algorithms/ConvertDiffCal-v1.rst b/docs/source/algorithms/ConvertDiffCal-v1.rst
index c947aa6d6800..f9612bdb4e70 100644
--- a/docs/source/algorithms/ConvertDiffCal-v1.rst
+++ b/docs/source/algorithms/ConvertDiffCal-v1.rst
@@ -35,11 +35,11 @@ the following equations:
 
 Update existing calibration:
 
-.. math:: DIFC = DIFC_{old} & * & (1+|BinWidth|)^{-offset}
+.. math:: DIFC = DIFC_{old} \cdot (1+|BinWidth|)^{-offset}
 
 Calculate :math:`DIFC` from geometry of the experiment:
 
-.. math:: DIFC = \frac{m_n}{h}&(L1 + L2)&2sin\theta & * & (1+|BinWidth|)^{-offset}
+.. math:: DIFC = \frac{m_n}{h} \cdot (L1 + L2) 2 \sin(\theta) \cdot (1+|BinWidth|)^{-offset}
 
 The calculations for signed mode is appropriate for full-pattern cross-correlation with logarithmically binned data