equation format

Author: jeffjennings

1_SpectroscopicTraceTutorial.ipynb

@@ -365,7 +365,7 @@
     "\n",
     "(The first-order moment is the intensity-weighted mean position, \n",
     "\n",
-    "$m_1 = \\frac{\\Sigma_i x_i f(x_i)}{\\Sigma_i f(x_i)}$, \n",
+    "$$m_1 = \\frac{\\Sigma_i x_i f(x_i)}{\\Sigma_i f(x_i)}$$, \n",
     "\n",
     "where $x_i$ is the position and $f({x_i})$ is the intensity at that position.  $f(x_i)$ must be zero in the signal-free region for $m_1$ to return an accurate estimate of the location of the peak.)"
    ]

2_WavelengthCalibration.ipynb

@@ -1525,7 +1525,8 @@
     }
    },
    "source": [
-    "The moment-1 estimate of the peak location is, for a spectrum $f(x)$ and pixel location $x$ \n",
+    "The moment-1 estimate of the peak location is, for a spectrum $f(x)$ and pixel location $x$,\n",
+    "\n",
     "$$ m_1 = \\frac{\\Sigma x f(x)}{\\Sigma f(x)} $$\n",
     "\n",
     "which, through propagation of error, gives us variance of moment 1:\n",

3_Trace_Extract_Wavelength-CalibrateSpectrum.ipynb

@@ -353,7 +353,7 @@
    "metadata": {},
    "source": [
     "First, we do the calculation manually, following the optical definition\n",
-    "$$v_{opt} = c \\frac{\\lambda-\\lambda_0}{\\lambda} $$"
+    "$v_{opt} = c \\frac{\\lambda-\\lambda_0}{\\lambda} $"
    ]
   },
   {