【20 天 (結果變5天) 來 Skim + Scan (03)：一頁書心得 (數商)】
https://www.penana.com/article/1649263
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因為時間關係，我把 20 本縮減為 5 本。
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Day 23 ～ Day 27，我會列出五本會計學/數學相關書籍，從裡頭擷取一頁 (結果超過一頁～) 內容，然後寫一個小小的心得。
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from 博客來網路書店・我的電子書櫃「日記創挑書單」
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今天這本書是《真希望高中數學這樣教：系列暢銷20萬冊！跟著東大教授的解題祕訣，6天掌握高中數學關鍵》，作者是西成活裕, 鄉和貴，譯者是張郁萱。
https://www.books.com.tw/products/E050113778
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目錄
前言124Please respect copyright.ＰＥＮＡＮＡ3ZZdzIb9PX
登場人物介紹124Please respect copyright.ＰＥＮＡＮＡ47veqg3G29
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第一天 數學的樂趣在哪裡？124Please respect copyright.ＰＥＮＡＮＡYYbBFfbfqk
第一課 其實並不可怕的高中數學124Please respect copyright.ＰＥＮＡＮＡDroguhZu5T
好想學真正實用的數學！124Please respect copyright.ＰＥＮＡＮＡq1V94kJsGx
高中數學比國中數學還簡單！？124Please respect copyright.ＰＥＮＡＮＡ2XA6vHr1Tl
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第二課 超精簡的創新數學課！124Please respect copyright.ＰＥＮＡＮＡw1qiuWsSy7
果斷刪去八成教科書內容！124Please respect copyright.ＰＥＮＡＮＡVQXPe8DWK0
世界首創！「西成流」數學分類法124Please respect copyright.ＰＥＮＡＮＡFppndVeNyF
高中數學中最輕鬆的是「代數」124Please respect copyright.ＰＥＮＡＮＡpT0F52OpIt
高中數學的顛峰是「微分積分」124Please respect copyright.ＰＥＮＡＮＡ36n3FUDKp8
超好用的工具「餘弦定理」124Please respect copyright.ＰＥＮＡＮＡwbvXYjXoUb
真正的幾何大魔王是「向量」124Please respect copyright.ＰＥＮＡＮＡ7aGBBLXbJd
Column文組無法理解數學的理由124Please respect copyright.ＰＥＮＡＮＡerK72ScTIC
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第二天 輕鬆致勝！搞懂「代數」就能精通高中文組數學！！124Please respect copyright.ＰＥＮＡＮＡIoMwG64DeL
第一課 速速學會統計學基礎124Please respect copyright.ＰＥＮＡＮＡNV1fjgQ1uA
數據處理的3大必備條件124Please respect copyright.ＰＥＮＡＮＡ5OV0xxUI6u
為什麼增加個數很好用？124Please respect copyright.ＰＥＮＡＮＡfh7CkZIDM3
「排列組合」是指什麼？124Please respect copyright.ＰＥＮＡＮＡiKuY9SlVob
看離散程度的「標準差」124Please respect copyright.ＰＥＮＡＮＡC9f02Hf1Wm
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第二課 記住「數列相加」的方法124Please respect copyright.ＰＥＮＡＮＡOzDClOxVUB
天才高斯少年發現的「倒序相加」124Please respect copyright.ＰＥＮＡＮＡtrpWbMz0mg
超好用！任何等差數列都能用124Please respect copyright.ＰＥＮＡＮＡj9IWmU4VaU
嚴禁直接死背公式！124Please respect copyright.ＰＥＮＡＮＡi6HtHzOzJ8
導出等差數列和的公式124Please respect copyright.ＰＥＮＡＮＡczUYUO4xkb
豐臣秀吉被擺了一道！數學變黃金的故事124Please respect copyright.ＰＥＮＡＮＡg6bo6Wy1Aq
等比數列是「相乘後錯位相減」124Please respect copyright.ＰＥＮＡＮＡ5lahFzUcUx
導出等比數列和的公式124Please respect copyright.ＰＥＮＡＮＡZzyw5DzxLM
先知道處理數列和的符號！124Please respect copyright.ＰＥＮＡＮＡNcbhJt5pQF
Column把數學記號當作是念魔咒124Please respect copyright.ＰＥＮＡＮＡer5uecoXJY
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第三課 記住「排列組合法」124Please respect copyright.ＰＥＮＡＮＡAcjA4CwsUY
從賽馬了解「排列」與「組合」124Please respect copyright.ＰＥＮＡＮＡ7BtOAoi3de
Step①了解階乘的計算方法124Please respect copyright.ＰＥＮＡＮＡkijsQ0PB1i
Step②了解排列的計算方法124Please respect copyright.ＰＥＮＡＮＡDjOZbrLnjM
Step③了解組合的計算方法124Please respect copyright.ＰＥＮＡＮＡctELGsA4nV
了解「排列」與「組合」的式子124Please respect copyright.ＰＥＮＡＮＡZ43nQbOxLw
「排列」和「組合」的符號是「P」和「C」124Please respect copyright.ＰＥＮＡＮＡA3GFRxD770
運用「排列」和「組合」排班表124Please respect copyright.ＰＥＮＡＮＡzfOqvMXUBP
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第四課 搞懂「離散值」和「標準差」124Please respect copyright.ＰＥＮＡＮＡ3bJGb4h9Hp
資訊分析的基礎是找到「數據的規則」124Please respect copyright.ＰＥＮＡＮＡnMmbJlv5UR
兩個步驟找出離散程度124Please respect copyright.ＰＥＮＡＮＡlm2RXXhWYs
平均、分散、標準差的深～度關係124Please respect copyright.ＰＥＮＡＮＡKIsqBCfwl0
平均、離散、標準差的記號124Please respect copyright.ＰＥＮＡＮＡVqgySfGsFP
試著用Excel計算標準差124Please respect copyright.ＰＥＮＡＮＡe97OllmVw4
也把「偏差值」的計算公式記起來124Please respect copyright.ＰＥＮＡＮＡFKbCR4VNkt
附註內容①深奧的平均世界124Please respect copyright.ＰＥＮＡＮＡVUpdWi4m27
附註內容②平均值、中位數、眾數124Please respect copyright.ＰＥＮＡＮＡ6EMukaUU6t
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第三天 超爽快！掌握高中文組數學的「分析」！124Please respect copyright.ＰＥＮＡＮＡ2UL17dQCYW
第一課 豁然開朗！函數的世界124Please respect copyright.ＰＥＮＡＮＡUHaQqi3U8f
函數與方程式的差別？124Please respect copyright.ＰＥＮＡＮＡsYrHHhnAac
高中數學的4種函數124Please respect copyright.ＰＥＮＡＮＡkpu7TfhNcd
Column少年西成的理科腦情書124Please respect copyright.ＰＥＮＡＮＡZaEvcPuvD9
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第二課 來複習二次函數！124Please respect copyright.ＰＥＮＡＮＡlDyaV6vG89
速速複習！二次方程式124Please respect copyright.ＰＥＮＡＮＡ93MrbG5hJ8
畫出二次函數的圖形！124Please respect copyright.ＰＥＮＡＮＡLE1ZfsyipG
Column 物理學家是名偵探124Please respect copyright.ＰＥＮＡＮＡRx2I6GDaGP
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第三課 指數函數超好用！124Please respect copyright.ＰＥＮＡＮＡZr8R6zGupG
記住指數函數的相關用語124Please respect copyright.ＰＥＮＡＮＡWLf9wMd6Ep
基本規則①乘冪相乘時，指數相加124Please respect copyright.ＰＥＮＡＮＡwH1RUuS2I4
基本規則②乘冪再乘冪時，指數相乘124Please respect copyright.ＰＥＮＡＮＡaB8P9CgD05
基本規則③乘冪相除時，指數相減124Please respect copyright.ＰＥＮＡＮＡNxz2OZtQcu
指數是負數時會怎樣？124Please respect copyright.ＰＥＮＡＮＡsJ5x8m2xJg
指數是「0」的時候會怎樣？124Please respect copyright.ＰＥＮＡＮＡc35eFO1HUd
根號可以轉換成指數運算124Please respect copyright.ＰＥＮＡＮＡoPNDF6x6P6
統整指數運算的處理方式124Please respect copyright.ＰＥＮＡＮＡAwnwr6GCgK
將指數函數做成圖形看看！124Please respect copyright.ＰＥＮＡＮＡmc6DojzDpR
順便來談談「對數函數」的內容124Please respect copyright.ＰＥＮＡＮＡtAvD9mzi2U
天文數字也可以處理的對數函數124Please respect copyright.ＰＥＮＡＮＡCSSzpQJUCE
指數函數與音樂的深～度關係124Please respect copyright.ＰＥＮＡＮＡYw276B7iB7
用iPhone計算指數函數的方法124Please respect copyright.ＰＥＮＡＮＡGSFJHPT3FE
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第四天 秒懂高中數學的「幾何」精髓！124Please respect copyright.ＰＥＮＡＮＡMwNtH67Cl0
第一課 不再霧煞煞的「三角比」124Please respect copyright.ＰＥＮＡＮＡp610qnaNJI
以餘弦定理搞懂三角形124Please respect copyright.ＰＥＮＡＮＡY56QwRygII
畫三角形的「西成流」作法124Please respect copyright.ＰＥＮＡＮＡ85ZwYjCMN0
sin、cos、tan是指「邊長比」124Please respect copyright.ＰＥＮＡＮＡgd47Gowl6X
忘掉tan的存在吧！124Please respect copyright.ＰＥＮＡＮＡZYC8eK04Gj
直角三角形的定義中必要的θ124Please respect copyright.ＰＥＮＡＮＡiP8bCYQWYk
三角比經常出現的陷阱題124Please respect copyright.ＰＥＮＡＮＡcY6VJkYNmy
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第二課 俐落導出餘弦定理公式124Please respect copyright.ＰＥＮＡＮＡMB09dRZ3Bl
用三角比可以做的事124Please respect copyright.ＰＥＮＡＮＡvleqO7HTIR
導出餘弦定理①事前準備124Please respect copyright.ＰＥＮＡＮＡ7ci577IRY1
導出餘弦定理②成立公式、解開124Please respect copyright.ＰＥＮＡＮＡzZhObxGBsU
導出餘弦定理③證明sin2θ+ cos2θ= 1124Please respect copyright.ＰＥＮＡＮＡYnKXjgo9be
導出餘弦定理④完成124Please respect copyright.ＰＥＮＡＮＡXZmintYmOv
餘弦定理與畢氏定理的關係124Please respect copyright.ＰＥＮＡＮＡUToozfFhYF
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第三課 學習最後的分析工具「三角函數」！124Please respect copyright.ＰＥＮＡＮＡgnS9DFM7lU
三角函數只是將θ與y的關係圖像化124Please respect copyright.ＰＥＮＡＮＡsgcXNrzTl7
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第五天 特別課程①：幾何的最終武器「向量」！124Please respect copyright.ＰＥＮＡＮＡsGlIlrbAeY
第一課 偉大的「向量」124Please respect copyright.ＰＥＮＡＮＡPGml8nMJWw
用代數解幾何問題！？124Please respect copyright.ＰＥＮＡＮＡBZSmtrV3NB
「短短數行」就能證明餘弦定理124Please respect copyright.ＰＥＮＡＮＡvLMSTQxnVM
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第二課 了解「向量」的超嶄新概念124Please respect copyright.ＰＥＮＡＮＡXSg9FWKqbX
向量是集結兩種資訊的「特殊容器」124Please respect copyright.ＰＥＮＡＮＡFdFF5fdpGY
眾所熟知的「純量」124Please respect copyright.ＰＥＮＡＮＡKo5d2Zo2HJ
數據時代的主角「張量」124Please respect copyright.ＰＥＮＡＮＡ0dUn47qol1
為什麼我們需要向量？124Please respect copyright.ＰＥＮＡＮＡBamJiYIjA5
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第三課 「向量」是用箭頭當作記號唷124Please respect copyright.ＰＥＮＡＮＡNiRPUWcx45
向量的書寫規則124Please respect copyright.ＰＥＮＡＮＡdrmT8qCdy3
張量的畫法124Please respect copyright.ＰＥＮＡＮＡNIy0EQ1Nxz
試著把向量畫成圖124Please respect copyright.ＰＥＮＡＮＡXOXueZqYxi
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第四課 「向量」的計算超簡單！124Please respect copyright.ＰＥＮＡＮＡIQ4U42xxOK
來算算向量的加法吧124Please respect copyright.ＰＥＮＡＮＡCGmJjvrnYy
也來算算向量的減法124Please respect copyright.ＰＥＮＡＮＡk3pe5s37Z0
試著分解向量吧124Please respect copyright.ＰＥＮＡＮＡyfcrASOMFf
試著挑戰向量的乘法124Please respect copyright.ＰＥＮＡＮＡK1Ua0LMY5D
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第五課 靠「向量」秒殺餘弦定理！124Please respect copyright.ＰＥＮＡＮＡK1IXVoJjtB
用向量瞬間導出餘弦定理！124Please respect copyright.ＰＥＮＡＮＡnzYncSnLJ3
不論幾次元都能處理的向量124Please respect copyright.ＰＥＮＡＮＡsYIsIGkVzD
Column少年來了！（前篇）124Please respect copyright.ＰＥＮＡＮＡ9ELBFXXaGB
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第6天 特別課程②：用「微積分」預測未來！124Please respect copyright.ＰＥＮＡＮＡmfdZDuCs1O
第一課 人類的寶物！了解微分積分124Please respect copyright.ＰＥＮＡＮＡPg5QG3f3jt
微分積分與函數的關係124Please respect copyright.ＰＥＮＡＮＡ1dvAW6WIYy
今天的主題是「三角形面積」124Please respect copyright.ＰＥＮＡＮＡLYDjCWz5Pk
牛頓VS萊布尼茲的仁義之戰124Please respect copyright.ＰＥＮＡＮＡPgoCZwigky
怎麼區分最合適？124Please respect copyright.ＰＥＮＡＮＡHUnAQAoo9r
用微積分計算三角形的面積！124Please respect copyright.ＰＥＮＡＮＡGKTD3te31d
來認識微分積分的符號124Please respect copyright.ＰＥＮＡＮＡuWwbnMwHom
Column少年來了！（後篇）124Please respect copyright.ＰＥＮＡＮＡpdmEW3Ilz6
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第二課 用Excel預測未來！124Please respect copyright.ＰＥＮＡＮＡiw3G3XdbSu
現代人，用Excel就能預測未來124Please respect copyright.ＰＥＮＡＮＡeohn7pXaRy
掌握Excel的使用方法！124Please respect copyright.ＰＥＮＡＮＡjIfwskpwAs
「數學家」、「AI」、「統計學家」的差別124Please respect copyright.ＰＥＮＡＮＡnd2wiSuMir
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後記
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from《真希望高中數學這樣教：系列暢銷20萬冊！跟著東大教授的解題祕訣，6天掌握高中數學關鍵》
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實在沒辦法只作一頁截圖，所以把指數函數和音階的關係，全部截圖下來，放在這裡，也可以讓大家看到，這本書及其姐妹作《真希望國中數學這樣教：暢銷20萬冊！6天搞懂3年數學關鍵原理，跟著東大教授學，解題力大提升！》的寫作風格，就是這麼樸實無華輕鬆有趣。
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這本書以對話體呈現，採訪者提問，教授回答，文字就是對話和解釋，佐以圖表和插圖，內容雖然是數學，卻不枯燥 (至少對我而言)，看完以後是否能提升數學能力 and/or 對數學的興趣，就有待讀者自己發掘了。
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不喜歡數學，很多時候是過去的陰影 (對老師、對學校、對教法、對教材、對考試⋯⋯) 造成的，其實與數學本身無涉；數學是一種語言，跟生活經驗極其相關。
伽利略認為「自然寫在宇宙這本大書上，而這本書是用數學語言寫成的。」
生而為人，我覺得很幸運，可以用數學這個語言，試著了解宇宙的奧妙。
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以上心得，部分文字出自《真希望國中數學這樣教：暢銷20萬冊！6天搞懂3年數學關鍵原理，跟著東大教授學，解題力大提升！》網頁下方會員評鑑「有感而發」的書評，不用懷疑，那個「有感而發」就是我本人啦。
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點一下網頁的「有感而發」，就可以看到我在博客來寫的書評，連結如下：
https://www.books.com.tw/booksComment/memberComment/xxx1406281
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【十二年國教課程綱要：數學領域 (節錄)】
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【同場加映】108課綱 資訊網
https://shs.k12ea.gov.tw/site/12basic
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今天到此為止，我們明天見！！
ns18.221.79.24da2
然後按「加至主畫面」