diff --git a/SaeWatanabe/.ipynb_checkpoints/Untitled-checkpoint.ipynb b/SaeWatanabe/.ipynb_checkpoints/Untitled-checkpoint.ipynb
new file mode 100644
index 0000000..f3e596f
--- /dev/null
+++ b/SaeWatanabe/.ipynb_checkpoints/Untitled-checkpoint.ipynb
@@ -0,0 +1,167 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]\n"
+     ]
+    }
+   ],
+   "source": [
+    "# 課題１\n",
+    "answer1 = list(range(1,11))\n",
+    "print(answer1)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[2, 4, 6, 8, 10]\n"
+     ]
+    }
+   ],
+   "source": [
+    "# 課題２\n",
+    "answer2 = [i for i in answer1 if i%2 == 0]\n",
+    "print(answer2)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 8,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{0: 'a', 1: 'b', 2: 'c', 3: 'd', 4: 'e', 5: 'f'}\n"
+     ]
+    }
+   ],
+   "source": [
+    "# 課題３\n",
+    "list1 = [\"a\",\"b\",\"c\",\"d\",\"e\",\"f\"]\n",
+    "answer3 = {i:list1[i] for i in range(len(list1))}\n",
+    "print(answer3)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 18,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "インクリメント前\n",
+      "山田　...　名前:山田 年齢:23歳 性別:男 身長:170.3cm 体重:60.2kg\n",
+      "高橋　...　名前:高橋 年齢:30歳 性別:女 身長:165.2cm 体重:46.2kg\n",
+      "\n",
+      "インクリメント後\n",
+      "山田　...　名前:山田 年齢:24歳 性別:男 身長:170.3cm 体重:60.2kg\n",
+      "高橋　...　名前:高橋 年齢:30歳 性別:女 身長:165.2cm 体重:46.2kg\n",
+      "\n",
+      "Humanクラスのインスタンスカウント　...　2\n"
+     ]
+    }
+   ],
+   "source": [
+    "# 課題４\n",
+    "class Human:\n",
+    "    \n",
+    "    # インスタンスのカウント\n",
+    "    cnt = 0\n",
+    "    \n",
+    "    # コンストラクタでデータを初期化    \n",
+    "    def __init__ (self,name,age,sex,height,weight):\n",
+    "        \n",
+    "        # インスタンスをカウントアップ\n",
+    "        Human.cnt += 1\n",
+    "        \n",
+    "        # データの初期化\n",
+    "        self.name = name\n",
+    "        self.age = age\n",
+    "        self.sex = sex\n",
+    "        self.height = height\n",
+    "        self.weight = weight\n",
+    "        \n",
+    "    # 年齢をインクリメント\n",
+    "    def countup_age(self):\n",
+    "        self.age += 1\n",
+    "        \n",
+    "    # クラスメソッドを作成\n",
+    "    @classmethod\n",
+    "    def class_count(cls):\n",
+    "        return cls.cnt\n",
+    "    \n",
+    "    # 文字列を返す\n",
+    "    def __repr__(self):\n",
+    "        return \"名前:%s 年齢:%d歳 性別:%s 身長:%.1fcm 体重:%.1fkg\"%(self.name,self.age,self.sex,self.height,self.weight)\n",
+    "        \n",
+    "    \n",
+    "# インスタンスを作成 \n",
+    "yamada = Human(name=\"山田\", age=23, sex=\"男\", height=170.3, weight=60.2)\n",
+    "takahashi = Human(name=\"高橋\", age=30, sex=\"女\", height=165.2, weight=46.2)\n",
+    "\n",
+    "print(\"インクリメント前\")\n",
+    "print(\"山田　...　%s\"%yamada)\n",
+    "print(\"高橋　...　%s\"%takahashi)\n",
+    "print()\n",
+    "\n",
+    "# 山田の年齢をインクリメント\n",
+    "yamada.countup_age()\n",
+    "\n",
+    "print(\"インクリメント後\")\n",
+    "print(\"山田　...　%s\"%yamada)\n",
+    "print(\"高橋　...　%s\"%takahashi)\n",
+    "print()\n",
+    "\n",
+    "print(\"Humanクラスのインスタンスカウント　...　%d\"%Human.class_count())\n",
+    "\n"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "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": "3.6.0"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}
diff --git a/SaeWatanabe/.ipynb_checkpoints/answer-checkpoint.ipynb b/SaeWatanabe/.ipynb_checkpoints/answer-checkpoint.ipynb
new file mode 100644
index 0000000..433bb9c
--- /dev/null
+++ b/SaeWatanabe/.ipynb_checkpoints/answer-checkpoint.ipynb
@@ -0,0 +1,222 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]\n"
+     ]
+    }
+   ],
+   "source": [
+    "# 課題１\n",
+    "answer1 = list(range(1,11))\n",
+    "print(answer1)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[2, 4, 6, 8, 10]\n"
+     ]
+    }
+   ],
+   "source": [
+    "# 課題２\n",
+    "answer2 = [i for i in answer1 if i%2 == 0]\n",
+    "print(answer2)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 8,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{0: 'a', 1: 'b', 2: 'c', 3: 'd', 4: 'e', 5: 'f'}\n"
+     ]
+    }
+   ],
+   "source": [
+    "# 課題３\n",
+    "list1 = [\"a\",\"b\",\"c\",\"d\",\"e\",\"f\"]\n",
+    "answer3 = {i:list1[i] for i in range(len(list1))}\n",
+    "print(answer3)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "インクリメント前\n",
+      "山田　...　名前:山田 年齢:23歳 性別:男 身長:170.3cm 体重:60.2kg\n",
+      "高橋　...　名前:高橋 年齢:30歳 性別:女 身長:165.2cm 体重:46.2kg\n",
+      "\n",
+      "インクリメント後\n",
+      "山田　...　名前:山田 年齢:24歳 性別:男 身長:170.3cm 体重:60.2kg\n",
+      "高橋　...　名前:高橋 年齢:30歳 性別:女 身長:165.2cm 体重:46.2kg\n",
+      "\n",
+      "Humanクラスのインスタンスカウント() = 2\n"
+     ]
+    }
+   ],
+   "source": [
+    "# 課題４\n",
+    "class Human:\n",
+    "    \n",
+    "    # インスタンスのカウント\n",
+    "    cnt = 0\n",
+    "    \n",
+    "    # コンストラクタでデータを初期化    \n",
+    "    def __init__ (self,name,age,sex,height,weight):\n",
+    "        \n",
+    "        # インスタンスをカウントアップ\n",
+    "        Human.cnt += 1\n",
+    "        \n",
+    "        # データの初期化\n",
+    "        self.name = name\n",
+    "        self.age = age\n",
+    "        self.sex = sex\n",
+    "        self.height = height\n",
+    "        self.weight = weight\n",
+    "        \n",
+    "    # 年齢をインクリメント\n",
+    "    def countup_age(self):\n",
+    "        self.age += 1\n",
+    "        \n",
+    "    # クラスメソッドを作成\n",
+    "    @classmethod\n",
+    "    def class_count(cls):\n",
+    "        return cls.cnt\n",
+    "    \n",
+    "    # 文字列を返す\n",
+    "    def __repr__(self):\n",
+    "        return \"名前:%s 年齢:%d歳 性別:%s 身長:%.1fcm 体重:%.1fkg\"%(self.name,self.age,self.sex,self.height,self.weight)\n",
+    "        \n",
+    "    \n",
+    "# インスタンスを作成 \n",
+    "yamada = Human(name=\"山田\", age=23, sex=\"男\", height=170.3, weight=60.2)\n",
+    "takahashi = Human(name=\"高橋\", age=30, sex=\"女\", height=165.2, weight=46.2)\n",
+    "\n",
+    "print(\"インクリメント前\")\n",
+    "print(\"山田　...　%s\"%yamada)\n",
+    "print(\"高橋　...　%s\"%takahashi)\n",
+    "print()\n",
+    "\n",
+    "# 山田の年齢をインクリメント\n",
+    "yamada.countup_age()\n",
+    "\n",
+    "print(\"インクリメント後\")\n",
+    "print(\"山田　...　%s\"%yamada)\n",
+    "print(\"高橋　...　%s\"%takahashi)\n",
+    "print()\n",
+    "\n",
+    "\n",
+    "print(\"Humanクラスのインスタンスカウント() = %d\"%Human.class_count())"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[[13 16]\n",
+      " [29 36]]\n"
+     ]
+    }
+   ],
+   "source": [
+    "# 課題５\n",
+    "import numpy as np\n",
+    "\n",
+    "# 行列の初期化\n",
+    "x = np.array([[1.,2.],[3.,4.]])\n",
+    "y = np.array([[3.,4.],[5.,6.]])\n",
+    "\n",
+    "print(x.dot(y))"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "3.2659863237109041"
+      ]
+     },
+     "execution_count": 6,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "# 課題６\n",
+    "# 行列の初期化\n",
+    "X = np.array([1.,2.,3.])\n",
+    "Y = np.array([0.,1.,2.])\n",
+    "\n",
+    "# cosを計算\n",
+    "X.dot(Y) / np.linalg.norm(x) * np.linalg.norm(Y)"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "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": "3.6.0"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}
diff --git a/SaeWatanabe/answer.ipynb b/SaeWatanabe/answer.ipynb
new file mode 100644
index 0000000..433bb9c
--- /dev/null
+++ b/SaeWatanabe/answer.ipynb
@@ -0,0 +1,222 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]\n"
+     ]
+    }
+   ],
+   "source": [
+    "# 課題１\n",
+    "answer1 = list(range(1,11))\n",
+    "print(answer1)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[2, 4, 6, 8, 10]\n"
+     ]
+    }
+   ],
+   "source": [
+    "# 課題２\n",
+    "answer2 = [i for i in answer1 if i%2 == 0]\n",
+    "print(answer2)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 8,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{0: 'a', 1: 'b', 2: 'c', 3: 'd', 4: 'e', 5: 'f'}\n"
+     ]
+    }
+   ],
+   "source": [
+    "# 課題３\n",
+    "list1 = [\"a\",\"b\",\"c\",\"d\",\"e\",\"f\"]\n",
+    "answer3 = {i:list1[i] for i in range(len(list1))}\n",
+    "print(answer3)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "インクリメント前\n",
+      "山田　...　名前:山田 年齢:23歳 性別:男 身長:170.3cm 体重:60.2kg\n",
+      "高橋　...　名前:高橋 年齢:30歳 性別:女 身長:165.2cm 体重:46.2kg\n",
+      "\n",
+      "インクリメント後\n",
+      "山田　...　名前:山田 年齢:24歳 性別:男 身長:170.3cm 体重:60.2kg\n",
+      "高橋　...　名前:高橋 年齢:30歳 性別:女 身長:165.2cm 体重:46.2kg\n",
+      "\n",
+      "Humanクラスのインスタンスカウント() = 2\n"
+     ]
+    }
+   ],
+   "source": [
+    "# 課題４\n",
+    "class Human:\n",
+    "    \n",
+    "    # インスタンスのカウント\n",
+    "    cnt = 0\n",
+    "    \n",
+    "    # コンストラクタでデータを初期化    \n",
+    "    def __init__ (self,name,age,sex,height,weight):\n",
+    "        \n",
+    "        # インスタンスをカウントアップ\n",
+    "        Human.cnt += 1\n",
+    "        \n",
+    "        # データの初期化\n",
+    "        self.name = name\n",
+    "        self.age = age\n",
+    "        self.sex = sex\n",
+    "        self.height = height\n",
+    "        self.weight = weight\n",
+    "        \n",
+    "    # 年齢をインクリメント\n",
+    "    def countup_age(self):\n",
+    "        self.age += 1\n",
+    "        \n",
+    "    # クラスメソッドを作成\n",
+    "    @classmethod\n",
+    "    def class_count(cls):\n",
+    "        return cls.cnt\n",
+    "    \n",
+    "    # 文字列を返す\n",
+    "    def __repr__(self):\n",
+    "        return \"名前:%s 年齢:%d歳 性別:%s 身長:%.1fcm 体重:%.1fkg\"%(self.name,self.age,self.sex,self.height,self.weight)\n",
+    "        \n",
+    "    \n",
+    "# インスタンスを作成 \n",
+    "yamada = Human(name=\"山田\", age=23, sex=\"男\", height=170.3, weight=60.2)\n",
+    "takahashi = Human(name=\"高橋\", age=30, sex=\"女\", height=165.2, weight=46.2)\n",
+    "\n",
+    "print(\"インクリメント前\")\n",
+    "print(\"山田　...　%s\"%yamada)\n",
+    "print(\"高橋　...　%s\"%takahashi)\n",
+    "print()\n",
+    "\n",
+    "# 山田の年齢をインクリメント\n",
+    "yamada.countup_age()\n",
+    "\n",
+    "print(\"インクリメント後\")\n",
+    "print(\"山田　...　%s\"%yamada)\n",
+    "print(\"高橋　...　%s\"%takahashi)\n",
+    "print()\n",
+    "\n",
+    "\n",
+    "print(\"Humanクラスのインスタンスカウント() = %d\"%Human.class_count())"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[[13 16]\n",
+      " [29 36]]\n"
+     ]
+    }
+   ],
+   "source": [
+    "# 課題５\n",
+    "import numpy as np\n",
+    "\n",
+    "# 行列の初期化\n",
+    "x = np.array([[1.,2.],[3.,4.]])\n",
+    "y = np.array([[3.,4.],[5.,6.]])\n",
+    "\n",
+    "print(x.dot(y))"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "3.2659863237109041"
+      ]
+     },
+     "execution_count": 6,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "# 課題６\n",
+    "# 行列の初期化\n",
+    "X = np.array([1.,2.,3.])\n",
+    "Y = np.array([0.,1.,2.])\n",
+    "\n",
+    "# cosを計算\n",
+    "X.dot(Y) / np.linalg.norm(x) * np.linalg.norm(Y)"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "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": "3.6.0"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}