……各种批评，但我回忆起读 Boyce & DiPrima 时，Laplace 变换被降格成了初值问题（IVP）的工具。读完后我总觉得只是又学了个解题套路，直到我读了 Churchill & Brown 的《Complex Variables and Applications》。
…criticisms, but I was recollecting on reading Boyce & DiPrima where the Laplace was relegated to IVP. I was left with feeling that I had only learned yet another trick until I read Churchill & Brown's Complex Variables and Applications.
我遇到了另一个问题：我发现随着书读得越来越深，文字密度暴增了10倍，但符号密度和证明却变少了。我最喜欢拿来举例的就是这本：Brown 和 Churchill 写的《Complex Variables and Applications》。这本书大概已经出版了70年吧，最新版好像大概有400页。我跟做研究的导师手里有一本80年代早期的版本，……
I had a different problem, I found that word density increases 10 fold, but symbol density and proofs go down as you go through it. My favorite example to use is this: Complex Variables and Applications by Brown and Churchill. This book has been in print for 70 years or something, and it's somewhere around 400 pages in the current edition I believe. My professor I did research for had a early 80s edition,…
>你在那个年纪要是能收到什么书会很开心？我记得自己十几岁的时候收到了《God Created The Integers》，结果……没读完。我还拿到了一本 Brown & Churchill 的《Complex Variables and Applications》，在上面砸了几百个小时。青少年时期的我比起科普读物更喜欢带习题集的教材。（我现在依然如此。）当然，那是［复］分析，所以不太算数。有一本……
>What would you have appreciated having been given at that age? I remember getting God Created The Integers when I was a teenager and... not finishing it. I also got a copy of Brown & Churchill's Complex Variables and Applications and spent hundreds of hours on it. As a teenager, I preferred textbooks with problem sets to popularizations. (I still do.) Of course, this was [complex] analysis, so it doesn't qualify. One book which…
……Reif 的《Fundamentals of Statistical and Thermal Physics》，Liboff 的《Introductory Quantum Mechanics》，Sakurai 的《Modern Quantum Mechanics》，Ashcroft 和 Mermin 的《Solid State Physics》，Brown 和 Churchill 的《Complex Variables and Applications》以及《Fourier Series and Boundary Value Problems》。
…Reif, "Fundamentals of Statistical and Thermal Physics", Liboff, "Introductory Quantum Mechanics", Sakurai, "Modern Quantum Mechanics", Ashcroft and Mermin, "Solid State Physics", Brown and Churchill, "Complex Variables and Applications", and "Fourier Series and Boundary Value Problems".
……英语不是他们的母语。有那么几本书出版了很长时间，不同版本之间的可读性简直天差地别。Churchill/Brown 那本《Complex Variables and Applications》，从60年代版到现在，整整塞进去了大概100多页废话。
…English wasn't their primary language. There's a few books that have been around forever, and they have a completely different level of readability between the editions. The Churchill/Brown book of Complex Variables and Applications has added something like 100+ pages of wordiness to the book since the 60's edition.
……各种批评，但我回忆起读 Boyce & DiPrima 时，Laplace 变换被降格成了初值问题（IVP）的工具。读完后我总觉得只是又学了个解题套路，直到我读了 Churchill & Brown 的《Complex Variables and Applications》。
…criticisms, but I was recollecting on reading Boyce & DiPrima where the Laplace was relegated to IVP. I was left with feeling that I had only learned yet another trick until I read Churchill & Brown's Complex Variables and Applications.
我遇到了另一个问题：我发现随着书读得越来越深，文字密度暴增了10倍，但符号密度和证明却变少了。我最喜欢拿来举例的就是这本：Brown 和 Churchill 写的《Complex Variables and Applications》。这本书大概已经出版了70年吧，最新版好像大概有400页。我跟做研究的导师手里有一本80年代早期的版本，……
I had a different problem, I found that word density increases 10 fold, but symbol density and proofs go down as you go through it. My favorite example to use is this: Complex Variables and Applications by Brown and Churchill. This book has been in print for 70 years or something, and it's somewhere around 400 pages in the current edition I believe. My professor I did research for had a early 80s edition,…
>你在那个年纪要是能收到什么书会很开心？我记得自己十几岁的时候收到了《God Created The Integers》，结果……没读完。我还拿到了一本 Brown & Churchill 的《Complex Variables and Applications》，在上面砸了几百个小时。青少年时期的我比起科普读物更喜欢带习题集的教材。（我现在依然如此。）当然，那是［复］分析，所以不太算数。有一本……
>What would you have appreciated having been given at that age? I remember getting God Created The Integers when I was a teenager and... not finishing it. I also got a copy of Brown & Churchill's Complex Variables and Applications and spent hundreds of hours on it. As a teenager, I preferred textbooks with problem sets to popularizations. (I still do.) Of course, this was [complex] analysis, so it doesn't qualify. One book which…
……Reif 的《Fundamentals of Statistical and Thermal Physics》，Liboff 的《Introductory Quantum Mechanics》，Sakurai 的《Modern Quantum Mechanics》，Ashcroft 和 Mermin 的《Solid State Physics》，Brown 和 Churchill 的《Complex Variables and Applications》以及《Fourier Series and Boundary Value Problems》。
…Reif, "Fundamentals of Statistical and Thermal Physics", Liboff, "Introductory Quantum Mechanics", Sakurai, "Modern Quantum Mechanics", Ashcroft and Mermin, "Solid State Physics", Brown and Churchill, "Complex Variables and Applications", and "Fourier Series and Boundary Value Problems".
……英语不是他们的母语。有那么几本书出版了很长时间，不同版本之间的可读性简直天差地别。Churchill/Brown 那本《Complex Variables and Applications》，从60年代版到现在，整整塞进去了大概100多页废话。
…English wasn't their primary language. There's a few books that have been around forever, and they have a completely different level of readability between the editions. The Churchill/Brown book of Complex Variables and Applications has added something like 100+ pages of wordiness to the book since the 60's edition.