floatingpoint.ipynb

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     "text": [
      "True\n",
      "True\n",
      "False\n",
      "True\n",
      "True\n",
      "False\n",
      "False\n",
      "True\n",
      "True\n"
     ]
    }
   ],
   "source": [
    "# https://docs.python.org/3/tutorial/floatingpoint.html\n",
    "a = 0.1\n",
    "print(a * 1 == 0.1)\n",
    "print(a * 2 == 0.2)\n",
    "print(a * 3 == 0.3)\n",
    "print(a * 4 == 0.4)\n",
    "print(a * 5 == 0.5)\n",
    "print(a * 6 == 0.6)\n",
    "print(a * 7 == 0.7)\n",
    "print(a * 8 == 0.8)\n",
    "print(a * 9 == 0.9)"
   ]
  },
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    {
     "name": "stdout",
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     "text": [
      "False\n",
      "False\n",
      "True\n",
      "False\n",
      "False\n",
      "True\n",
      "True\n",
      "False\n",
      "False\n"
     ]
    }
   ],
   "source": [
    "print(a * 1 > 0.1)\n",
    "print(a * 2 > 0.2)\n",
    "print(a * 3 > 0.3)\n",
    "print(a * 4 > 0.4)\n",
    "print(a * 5 > 0.5)\n",
    "print(a * 6 > 0.6)\n",
    "print(a * 7 > 0.7)\n",
    "print(a * 8 > 0.8)\n",
    "print(a * 9 > 0.9)"
   ],
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  },
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     "text": [
      "True\n",
      "True\n",
      "True\n",
      "True\n",
      "True\n",
      "True\n",
      "True\n",
      "True\n",
      "True\n"
     ]
    }
   ],
   "source": [
    "import math\n",
    "# Equality only\n",
    "print(math.isclose(a * 1, 0.1))\n",
    "print(math.isclose(a * 2, 0.2))\n",
    "print(math.isclose(a * 3, 0.3))\n",
    "print(math.isclose(a * 4, 0.4))\n",
    "print(math.isclose(a * 5, 0.5))\n",
    "print(math.isclose(a * 6, 0.6))\n",
    "print(math.isclose(a * 7, 0.7))\n",
    "print(math.isclose(a * 8, 0.8))\n",
    "print(math.isclose(a * 9, 0.9))"
   ],
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     "text": [
      "True\n",
      "True\n",
      "True\n",
      "True\n",
      "True\n",
      "True\n",
      "True\n",
      "True\n",
      "True\n"
     ]
    }
   ],
   "source": [
    "print(math.floor(a * 1) == math.floor(0.1))\n",
    "print(math.floor(a * 2) == math.floor(0.2))\n",
    "print(math.floor(a * 3) == math.floor(0.3))\n",
    "print(math.floor(a * 4) == math.floor(0.4))\n",
    "print(math.floor(a * 5) == math.floor(0.5))\n",
    "print(math.floor(a * 6) == math.floor(0.6))\n",
    "print(math.floor(a * 7) == math.floor(0.7))\n",
    "print(math.floor(a * 8) == math.floor(0.8))\n",
    "print(math.floor(a * 9) == math.floor(0.9))"
   ],
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   "id": "60172cdcba77ba74",
   "execution_count": 21
  },
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     "text": [
      "True\n",
      "True\n",
      "True\n",
      "True\n",
      "True\n",
      "True\n",
      "True\n",
      "True\n",
      "True\n"
     ]
    }
   ],
   "source": [
    "print(math.floor(a * 1) > math.floor(0.1))\n",
    "print(math.floor(a * 2) > math.floor(0.2))\n",
    "print(math.floor(a * 3) > math.floor(0.3))\n",
    "print(math.floor(a * 4) > math.floor(0.4))\n",
    "print(math.floor(a * 5) > math.floor(0.5))\n",
    "print(math.floor(a * 6) > math.floor(0.6))\n",
    "print(math.floor(a * 7) > math.floor(0.7))\n",
    "print(math.floor(a * 8) > math.floor(0.8))\n",
    "print(math.floor(a * 9) > math.floor(0.9))"
   ],
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     "execution_count": 3,
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   ],
   "source": [
    "b = 1\n",
    "(b * 3)/10 == 0.3"
   ],
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     "execution_count": 4,
     "metadata": {},
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   ],
   "source": [
    "round(0.1, 1) + round(0.1, 1) + round(0.1, 1) == round(0.3, 1)"
   ],
   "metadata": {
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   "id": "1bf5363d15ca5675",
   "execution_count": 4
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     "execution_count": 5,
     "metadata": {},
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   ],
   "source": [
    "0.1 * 10**18 == 1 * 10**17"
   ],
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     "start_time": "2024-01-31T04:11:38.596204Z"
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   },
   "id": "217b0281906d864",
   "execution_count": 5
  },
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     "text": [
      "True\n",
      "True\n",
      "False\n",
      "True\n",
      "True\n",
      "False\n",
      "False\n",
      "True\n",
      "True\n"
     ]
    }
   ],
   "source": [
    "import numpy as np\n",
    "b = np.float64(0.1)\n",
    "\n",
    "print(b * 1 == np.float64(0.1))\n",
    "print(b * 2 == np.float64(0.2))\n",
    "print(b * 3 == np.float64(0.3))\n",
    "print(b * 4 == np.float64(0.4))\n",
    "print(b * 5 == np.float64(0.5))\n",
    "print(b * 6 == np.float64(0.6))\n",
    "print(b * 7 == np.float64(0.7))\n",
    "print(b * 8 == np.float64(0.8))\n",
    "print(b * 9 == np.float64(0.9))"
   ],
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     "end_time": "2024-01-31T05:21:32.909524Z",
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   },
   "id": "28d860bbd6d7e63c",
   "execution_count": 17
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