diff --git a/debugging.ipynb b/debugging.ipynb
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+{
+ "cells": [
+  {
+   "attachments": {},
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Debugging V values"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# ./En.run -d 3 -n 3 -e 5 -c eps=0 -c pot=v_gauss,v0=-4,r=2 -N 6 -L 5:14 -c n_imag=1\n",
+    "\n",
+    "include(\"common.jl\")\n",
+    "\n",
+    "T=Float32\n",
+    "\n",
+    "function V_test(r2::T)::T\n",
+    "    return -4*exp(-r2/4)\n",
+    "end\n",
+    "\n",
+    "N=6\n",
+    "L::T=14.0\n",
+    "n_image=1\n",
+    "\n",
+    "V=calculate_Vs(V_test, 3, 3, N, L, n_image)\n",
+    "\n",
+    "outfile = \"temp/V_vals.txt\"\n",
+    "\n",
+    "open(outfile, \"w\") do f\n",
+    "    for i in V\n",
+    "        println(f, i)\n",
+    "    end\n",
+    "end"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Julia 1.8.5",
+   "language": "julia",
+   "name": "julia-1.8"
+  },
+  "language_info": {
+   "file_extension": ".jl",
+   "mimetype": "application/julia",
+   "name": "julia",
+   "version": "1.8.5"
+  },
+  "orig_nbformat": 4
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}