……甚至在大学里都选不到，除非你是数学专业的。如果你三角学底子较差，需要多练练手找找灵感，我推荐：Eli Maor 的《Trigonometric Delights》，用来启发思路；A. Albert Klaf 的《Trigonometry Refresher》，用来刷练习题；C.V. Durell 和 A. Robson 的《Advanced Trigonometry》，用来参考高阶应用案例。统计学非常重要，却被大多数 hacker 彻底忽略了，而且……
…even available in college unless you're a math major. If you have a sketchy trig background and need more practice and inspiration, I recommend: Trigonometric Delights by Eli Maor, for inspiration. Trigonometry Refresher by A. Albert Klaf for practice problems Advanced Trigonometry by C.V. Durell and A.Robson for examples of advanced applications Statistics is very important and totally overlooked by most hackers and…
Funnily enough, haversines and the lot can be found in Dover's Trigonometry Refresher. Had.to do some revision myself for back-to-school. O.G. Artillery measurement and spherical navigation can be revised in that book, while spherical trig. can be practiced in the 1954 edition Schaum's…
……甚至在大学里都选不到，除非你是数学专业的。如果你三角学底子较差，需要多练练手找找灵感，我推荐：Eli Maor 的《Trigonometric Delights》，用来启发思路；A. Albert Klaf 的《Trigonometry Refresher》，用来刷练习题；C.V. Durell 和 A. Robson 的《Advanced Trigonometry》，用来参考高阶应用案例。统计学非常重要，却被大多数 hacker 彻底忽略了，而且……
…even available in college unless you're a math major. If you have a sketchy trig background and need more practice and inspiration, I recommend: Trigonometric Delights by Eli Maor, for inspiration. Trigonometry Refresher by A. Albert Klaf for practice problems Advanced Trigonometry by C.V. Durell and A.Robson for examples of advanced applications Statistics is very important and totally overlooked by most hackers and…
有意思的是，半正矢公式（haversines）这类东西在 Dover 出版的《Trigonometry Refresher》里全能找到。我自己为了返校也不得不复习了一番。在那本书里可以重温最硬核（O.G.）的火炮测距和球面航行法，而球面三角学则可以在 1954 年版的 Schaum's 练习册里……
Funnily enough, haversines and the lot can be found in Dover's Trigonometry Refresher. Had.to do some revision myself for back-to-school. O.G. Artillery measurement and spherical navigation can be revised in that book, while spherical trig. can be practiced in the 1954 edition Schaum's…