Check #514

examples/ipython/issue-514.ipynb

@@ -0,0 +1,83 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "c98f4750-3af1-4749-b2a6-8a17764511bd",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "(e_xyz, e_xyz, 'Iinv+')"
+      ]
+     },
+     "execution_count": 1,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "from galgebra.ga import Ga\n",
+    "import sympy as S\n",
+    "\n",
+    "Ga.dual_mode('Iinv+')\n",
+    "\n",
+    "ga = Ga('e', g=[1,1,1], coords=S.symbols('x y z', real=True), wedge=False)\n",
+    "ex,ey,ez = ga.mv()\n",
+    "I = ga.i\n",
+    "(ex*I) * (ex*I).dual(), (ex*I).dual() * (ex*I), ga.dual_mode_value"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "id": "95c6f201-9f55-4e5d-9996-6a19b0f915ff",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "True"
+      ]
+     },
+     "execution_count": 2,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "(ex*I).dual().undual() == (ex*I)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "f8d2ce01-aae9-46ff-be2d-225138fa30cf",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.9.18"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}