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我上传这些资料，旨在和广大学习者自由交流讨论。该库文件中：至少包括SolusMan-LADR4e.pdf和SourceCode目录下的png, jpg, ggb文件，除去‘by-nc-sa.png’，都是在CC0协议下的。至少包括SourceCode目录下的SolusMan-LADR4e.tex、Ch1-2-3-4-5-8-9A.tex、Ch6-7-10-4e9.tex、Settings.tex，是在CC BY NC SA条款约束下的，仅允许非商业用途的修改、复制、转发、衍生等，并且需要为副本/衍生作品使用与原作相同的协议（传染性）。这是因为原作LADR4e是在CC BY NC下发布的。所以其衍生作品允许（哪怕是一点点）商用是非法的，其许可证也是无效的。
该仓库的许可证曾在24年12月30日有过一次大变更。此次变更之前的版本对用户的(A)GPLv3/GFDL的授权，因为违背了被衍生作品即原作LADR4e的NonCommerical条款，所以在可商用性方面是无效的。
该仓库是GitHub与Gitee双向同步的；这是因为对国人来说，访问Gitee比访问GitHub容易。
这个文件夹包含ttf和otf字体文件、tex源代码、调用的sty头文件、引用的png、jpg图片、.ggb文件。这些文件用于生成SolusMan-LADR4e.pdf。主要就是，用TeXstudio, Texmaker或者其他IDE，亦或者编译器，编译SolusMan-LADR4e.tex，输出PDF二进制版本。
该目录下的.ttf和.otf字体文件在(L)GPL条款下。该目录下Headers文件夹中extrarrows.sty在LGPL条款下。
为了更高的实时编译效率，我将代码架构为 Settings（Settings.tex）、Chxxx（Ch1-2-3-4-5-8-9A.tex、Ch6-7-10-4e9.tex）、Main（SolusMan-LADR4e.tex）。
见SolusMan-LADR4e.pdf第一页。
这个文件与我无关，也不受这里LICENSE的限制，我仅仅是从https://epdf.tips/queue/linear-algebra-done-right-solutions-manual.html（还有很多网站可以下载，搜索关键词'linear algebra done right solutions manual'就行）上下载过来改了文件名又传到这里。内有指明版权，允许修改、概述和分发。
所见即所得，我认为这本答案中的思路和方法非常经典、非常贴合原书，与 LADR2eSolutions（By Axler）.pdf 的答案风格非常相近，这两本答案都比https://linearalgebras.com/上的答案更胜一筹。 这个文件与我无关，也不受这里LICENSE的限制，我仅仅是从https://lew98.github.io那里下载过来改了下文件名又传到这里；疑似是 Sheldon Axler 教授所作，或者是他的学生所作，亦或者是共同完成，尽管这份文件没有在https://linear.axler.net上。 然而里面没有明确版权，默认为Public Domain。
这份习题答案中，截止目前，我发现的错误有：
- 第3章F节22题(b)问，
- 第4章14题(a)问，
- 第5章A节27题（有关第2章的小错误），
- 第7章D节16题（多项式作用于算子的错误使用），
- 第9章C节9题（实V上算子T的特征多项式不能确定）
- ...
这是我个人编写LaTeX代码时使用的TeXstudio配置。
sudo apt install texlive
sudo apt install texlive-xetex
sudo apt install texlive-lang-chinese
sudo apt install texstudio
即可。其他系统下，差不多也就 texlive、xetex、中文语言包、texstudio 这些。
我为什么要设一个LICENSE？这只是一个“防御性条款”。毕竟，我可不想在我拿着我亲手写出来的东西「尽管题解中大部分不是我原创，但我摘录的内容本身就是可随意摘录的；这里“亲手写”意思是我亲手排版、编撰、修正」分享到网上并和别人自由讨论时，被一个不知道哪里冒出来的人指控我盗取了他的东西，并设法让我摊上麻烦。
额外地，我希望每个有能力修改再分发我编撰的资料的人都能遵守/延续这里的条款。我在此不鼓励任何人在修改/重排这些资料后将修改/重排的版本闭源或专用性商用（尽管我不会追究；但相关的潜在法律风险也和我无关），从而阻碍别人自由使用/分享/再修改。
I am a Chinese, and I am not good at English. Thus I must first apologize, for words below may be awkward. You can contact me via Email to let me know where I made mistakes, or even, if you wish, to suggest me a better example.
The purpose of me uploading these materials, is to communicate with as many learners, teachers, scholars, etc. as possible. The files in this repo, at least containing SolusMan-LADR4e.pdf and .png, .jpg, .gbb files under the SourceCode directory, except for `by-nc-sa.png', are all licensed under CC0; files at least containing SolusMan-LADR4e.tex, Ch1-2-3-4-5-8-9A.tex, Ch6-7-10-4e9.tex, Settings.tex in the SourceCode directory, are licensed under CC BY NC SA.
You are free to (re)distribute, modify, or copy any part or whole of those files, as long as in non-commerical use, and as long as you release your Derivative Work under the same License. See LICENSE for more details.
The license of this repo had a major change on December 30, 2024. The version prior to this change, in terms of the (A)GPLv3/GFDL authorization for users, was invalid in terms of commercial usability because it violated the NonCommerical clause of the original work LADR4e from which it was derived.
Including font files in .ttf, .otf, source files in .tex, header files in .sty, pictures in .png, .jpg, .ggb files. These files are used in generating SolusMan-LADR4e.pdf, by TeXstudio, or Texmaker or other IDE, or simply a compiler.
The .ttf, .otf font files are licensed under (L)GPL. extrarrows.sty in the Headers directory is licensed under LGPL.
In order to reduce compile time during coding and testing, I seperate my source code into parts including Settings(Settings.tex), Chxxx(Ch1-2-3-4-5-8-9A.tex, Ch6-7-10-4e9.tex), Main(SolusMan-LADR4e.tex).
See the first page of SolusMan-LADR4e.pdf. You may need a translator.
This file, is absolutely in no relation with me, in any ways, so it is not limitted under LICENSE. I just downloaded it from https://epdf.tips/queue/linear-algebra-done-right-solutions-manual.html, then renamed it, and then uploaded it here.
There are many other sites for downloading this file, just type 'linear algebra done right solutions manual' in your Search Engine.
The copyright notice in this file permits modifying, abridging, distributing, and of course copying and adapting (at least a small part).
WYSIWYG. I think the methods and ideas in this manual, is specifically the same with the textbook. Maybe the author is Axler himself! Especially because of LADR2eSolutions（By Axler）.pdf, which is in the same style with this manual. Although both manuals are not on this page: https://linear.axler.net.
I think the answers given in the two manuals above are better than those of https://linearalgebras.com/.
What I must say, is that this file, is absolutely in no relation with me, in any ways, so it is not limitted under LICENSE. I just downloaded it from https://lew98.github.io, then renamed it, and then uploaded it here.
There is no copyright notice, so I suppose it is Public Domain. If it has, I assume that I have the perimission to copy, abridge any part of the document.
Up to now, I find that there are some wrong answers in this manual:
- Chapter 3 Section F Exercise 22 (b),
- Chapter 4 Exercise 14 (a),
- Chapter 5 Section A Exercise 27, some mistakes about Chapter 2,
- Chapter 7 Section D Exercise 16, wrong use of Polynomials Applied to Operators,
- Chapter 9 Section C Exercise 9, the characteristic polynomial should be indeterminate because V is real.
- ...
My personal configures for TeXstudio.
sudo apt install texlive
sudo apt install texlive-xetex
(optional) sudo apt install texlive-lang-chinese
sudo apt install texstudio