Linear algebra is the foundation of science and engineering. Knowledge of linear algebra is a prerequisite for studying statistics, machine learning, computer graphics, signal processing, chemistry, economics, quantum mechanics, and countless other applications. Indeed, linear algebra offers a powerful toolbox for modelling the real world.
The NO BULLSHIT GUIDE TO LINEAR ALGEBRA shows the connections between the computational techniques of linear algebra, their geometric interpretations, and the theoretical foundations. This university-level textbook contains lessons on linear algebra written in a style that is precise and concise. Each concept is illustrated through definitions, formulas, diagrams, explanations, and examples of real-world applications. Readers build their math superpowers by solving practice problems and learning to use the computer algebra system SymPy to speed up tedious matrix arithmetic tasks.
I have been teaching math and physics for more than 15 years as a private tutor. My tutoring experience taught me how to explain concepts that people find difficult to understand. I've had the chance to experiment with different approaches for explaining challenging material. Fundamentally, I've learned from teaching that understanding connections between concepts is much more important than memorizing facts. It's not about how many equations you know, but about knowing how to get from one equation to another.
I completed my undergraduate studies at McGill University in electrical engineering, then did a M.Sc. in physics, and recently completed a Ph.D. in computer science. In my career as a researcher, I've been fortunate to learn from very inspirational teachers, who had the ability to distill the essential ideas and explain things in simple language. I want to recreate the same learning experience for you through my writing. I founded the Minireference Publishing company to revolutionize the textbook industry. We make textbooks that don't suck.
刚看开头就可耻地笑出了声…… What are your feelings about math, dear reader? Are you afraid of it? Do you have anxiety attacks because you think it will be too difficult for you? Chill! Relax, my brothers and sisters. There’s nothing to it. Nobody can magi...
评分刚看开头就可耻地笑出了声…… What are your feelings about math, dear reader? Are you afraid of it? Do you have anxiety attacks because you think it will be too difficult for you? Chill! Relax, my brothers and sisters. There’s nothing to it. Nobody can magi...
评分刚看开头就可耻地笑出了声…… What are your feelings about math, dear reader? Are you afraid of it? Do you have anxiety attacks because you think it will be too difficult for you? Chill! Relax, my brothers and sisters. There’s nothing to it. Nobody can magi...
评分刚看开头就可耻地笑出了声…… What are your feelings about math, dear reader? Are you afraid of it? Do you have anxiety attacks because you think it will be too difficult for you? Chill! Relax, my brothers and sisters. There’s nothing to it. Nobody can magi...
评分刚看开头就可耻地笑出了声…… What are your feelings about math, dear reader? Are you afraid of it? Do you have anxiety attacks because you think it will be too difficult for you? Chill! Relax, my brothers and sisters. There’s nothing to it. Nobody can magi...
坦白说,我最欣赏的是作者在处理一些经典难题时的那种“务实”态度。很多传统教材在讲解特征值和特征向量时,总是一上来就抛出复杂的行列式计算和多项式的根,让初学者陷入无休止的代数运算泥潭,而忘记了这些概念背后的几何直觉。然而,这本书似乎明白读者的痛苦所在,它会先花大量的篇幅去建立空间变换的图像感——旋转、拉伸、剪切,这些操作是如何通过矩阵实现的?然后,再自然而然地引出特征向量,强调它们是那些“不被改变方向的特殊向量”。这种先建立直观感受,再引入数学工具的顺序,简直是醍醐灌顶。我感觉自己不再是被动地接受公式,而是主动地去探索这些工具如何描述我们身边的世界。这种教学策略非常高明,它成功地将抽象的代数概念与具体的空间几何概念紧密地联系了起来,使得学习过程充满了探索的乐趣,而不是枯燥的记忆。
评分这本书的封面设计真是直截了当,一眼就能看出它想传达的核心精神——不绕弯子,直击重点。我当时刚开始接触线性代数这门学科,感觉自己像是在迷雾中摸索,那些教科书里动辄几页长的推导和繁复的术语简直让人望而却步。后来偶然间发现了这本,它的标题本身就像是一剂强心针,让人瞬间清醒了不少。我翻开它的时候,期待的不是那种学院派的严谨到令人窒息的论述,而是更像一个经验丰富、脾气直爽的导师,用最接地气的方式把那些抽象的概念掰开揉碎了讲给我听。我记得特别清楚,书中讲解矩阵乘法的部分,没有陷入教科书里那种冗长的定义和符号堆砌,而是用了一种非常形象的比喻,仿佛我正在进行一场实际的资源调度,每一个数字的意义都清晰可见,而不是冷冰冰的符号游戏。这种叙事方式极大地降低了我对初学线性代数的恐惧感,让我觉得这门学科并非高不可攀的象牙塔知识,而是可以被理解和掌握的实用工具。
评分这本书的排版和习题设置也同样体现了其“不废话”的风格。在讲解完一个核心概念之后,它不会立即安排一大堆需要复杂手算才能解决的习题来折磨读者。相反,它更倾向于提供一些能迅速让你检验理解深度的“小测验”,这些问题通常侧重于概念的辨析和关键性质的判断。例如,在讨论向量空间的基和维度时,它会设计一些巧妙的例子,让你立刻意识到,如果基向量之间存在线性相关性,那么我们对这个空间的描述就会出现冗余。这种即时反馈机制对于建立稳固的基础至关重要。更重要的是,作者似乎深知现代应用领域对线性代数的需求,所以穿插的一些应用实例,比如数据压缩或者最优化问题的初步构架,都非常贴合实际,让人感觉自己学的不是纯数学,而是未来可能会用到的“硬技能”。
评分我曾经尝试过几本声誉极高的线性代数教材,它们大多内容详实,覆盖面广,但阅读体验就像是爬一座陡峭且布满苔藓的山峰,每一步都充满了不确定性。这本书则像是一条铺设平整、视野开阔的公路,让你能够以一个较高的速度稳定前行。它的语言风格极其简洁、有力,几乎没有一句是多余的废话。如果一个概念可以用一个清晰的句子表达清楚,它绝不会用一整段复杂的段落来绕圈子。这种极端的清晰度,对于那些时间有限,或者对纯粹的数学证明不感兴趣,但又必须掌握线性代数核心工具的工程师、程序员或者数据科学家来说,简直是福音。它帮你过滤掉了大量“学术上的华丽辞藻”,直奔问题的核心骨架而去,节省了宝贵的时间和认知负荷。
评分从阅读的整体感受来看,这本书的价值在于它重新定义了“基础”的含义。很多传统教材认为的“基础”是那些必须掌握的定理和证明的完整链条,但这本书所定义的“基础”是如何利用线性代数思维去解决实际问题。它巧妙地平衡了理论深度和实用性之间的关系。它没有回避矩阵的秩、零空间和列空间这些核心概念,但讲解的方式总是围绕着“这些概念在实际中意味着什么?”来展开。例如,在讲到矩阵的逆时,它不是仅仅停留在求解 $A^{-1}$ 的步骤上,而是强调了逆矩阵代表着“可逆转的操作”这一物理意义。这本书给我的感觉是,它是一本极其高效的“翻译器”,能把数学语言迅速翻译成我们能够理解的工程或科学语言,让我对这门学科的信心得到了极大的提升,强烈推荐给所有被传统线性代数教材劝退的人群。
评分感觉是一个黑人大叔搭着你的肩膀,跟你摆龙门阵。前面一半讲主要内容,后一小半讲应用(概率论、量子力学……),除应用的某些章节外,语言都是大白话,高中及以上文化水平的人能看懂。
评分感觉是一个黑人大叔搭着你的肩膀,跟你摆龙门阵。前面一半讲主要内容,后一小半讲应用(概率论、量子力学……),除应用的某些章节外,语言都是大白话,高中及以上文化水平的人能看懂。
评分感觉是一个黑人大叔搭着你的肩膀,跟你摆龙门阵。前面一半讲主要内容,后一小半讲应用(概率论、量子力学……),除应用的某些章节外,语言都是大白话,高中及以上文化水平的人能看懂。
评分感觉是一个黑人大叔搭着你的肩膀,跟你摆龙门阵。前面一半讲主要内容,后一小半讲应用(概率论、量子力学……),除应用的某些章节外,语言都是大白话,高中及以上文化水平的人能看懂。
评分感觉是一个黑人大叔搭着你的肩膀,跟你摆龙门阵。前面一半讲主要内容,后一小半讲应用(概率论、量子力学……),除应用的某些章节外,语言都是大白话,高中及以上文化水平的人能看懂。
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