Variable memory references

Author: sunilzambre

Variables are Memory References.ipynb

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+    "### We can find the memory address that a variable references, by using the id() function.\n",
+    "\n",
+    "#### The id() function returns the memory address of its argument as a base-10 integer.\n",
+    "\n",
+    "##### We can use the function hex() to convert the base-10 number to base-16."
+   ]
+  },
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+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "my_var = 10\n",
+      "memory address of my_var (decimal): 1736376674896\n",
+      "memory address of my_var (hex): 0x194481d6a50\n"
+     ]
+    }
+   ],
+   "source": [
+    "my_var = 10\n",
+    "print('my_var = {0}'.format(my_var))\n",
+    "print('memory address of my_var (decimal): {0}'.format(id(my_var)))\n",
+    "print('memory address of my_var (hex): {0}'.format(hex(id(my_var))))"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "id": "06a11d30",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "greeting = Hello\n",
+      "memory address of my_var (decimal): 1736464331376\n",
+      "memory address of my_var (hex): 0x1944d56f270\n"
+     ]
+    }
+   ],
+   "source": [
+    "greeting = 'Hello'\n",
+    "print('greeting = {0}'.format(greeting))\n",
+    "print('memory address of my_var (decimal): {0}'.format(id(greeting)))\n",
+    "print('memory address of my_var (hex): {0}'.format(hex(id(greeting))))"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "d671e16a",
+   "metadata": {},
+   "source": [
+    "ote how the memory address of my_var is different from that of greeting.\n",
+    "\n",
+    "Strictly speaking, my_var is not \"equal\" to 10.\n",
+    "\n",
+    "Instead my_var is a reference to an (integer) object (containing the value 10) located at the memory address id(my_var)\n",
+    "\n",
+    "Similarly for the variable greeting."
+   ]
+  }
+ ],
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