Preface started

.gitignore

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+.ipynb_checkpoints/

00-Preface.ipynb

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+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "93b7bcd7",
+   "metadata": {},
+   "source": [
+    "Code 0.1"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "id": "b7b2dd04",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "All models are wrong, but some are useful!\n"
+     ]
+    }
+   ],
+   "source": [
+    "println(\"All models are wrong, but some are useful!\")"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "db7b85d4",
+   "metadata": {},
+   "source": [
+    "Code 0.2"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "id": "5d765b0f",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "200.0000000000001"
+      ]
+     },
+     "execution_count": 3,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "x = range(1, 2, length=2)\n",
+    "x = x .* 10 .|> log |> sum |> exp\n",
+    "x "
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "239b58d0",
+   "metadata": {},
+   "source": [
+    "Code 0.3"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "id": "5f9a9f58",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "2-element Array{Float64,1}:\n",
+       "  -Inf\n",
+       " -921.0340371976182"
+      ]
+     },
+     "execution_count": 6,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "[\n",
+    "    log(0.01^200); \n",
+    "    200 * log(0.01)\n",
+    "]"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "da761d66",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Julia 1.5.3",
+   "language": "julia",
+   "name": "julia-1.5"
+  },
+  "language_info": {
+   "file_extension": ".jl",
+   "mimetype": "application/julia",
+   "name": "julia",
+   "version": "1.5.3"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}