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     "text": [
      "81\n"
     ]
    }
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   "source": [
    "# Write a Python program to calculate the value of 'a' to the power 'b'.\n",
    "\n",
    "def power(a,b):\n",
    "\tif b==0:\n",
    "\t\treturn 1\n",
    "\telif a==0:\n",
    "\t\treturn 0\n",
    "\telif b==1:\n",
    "\t\treturn a\n",
    "\telse:\n",
    "\t\treturn a*power(a,b-1)\n",
    "\n",
    "print(power(3,4))"
   ]
  }
 ],
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