Geometry and art are definitely related, and you need to know the equations to generate the drawings. It's amazing how much possibilities are open once you know some basic high school math (see my book https://gum.co/noBSmath).
This article is also a nice example of just-in-time learning: learning new material is so much more fun when you have a concrete goal in mind, rather than relying on a "you'll use this later"-promise.
Love your book, it was a very concise, to the point refresher of mathematics for me.
Also, the progression of topics felt very comfortable to me, almost like my school experience back in the Soviet days (and I mean it in a very positive way).
What I'd love and would gladly pay for is an additional exercise book with answers to accompany your book, just like in the spirit of the old textbooks.
I hear you. What would you call that, решебник/сборник? I'm planning to make an exercise generator framework with print(.tex) and web(.html) backends. The early khan-academy exercise framework was pretty awesome since it could generate random problem instances.
BTW, which edition of the book do you have? I've been adding exercises and problem sets progressively over the years. Currently there are 55 exercises (mostly Chapter 1) and 284 problems:
I'd just call it Exercise Book (Сборник упражнений с ответами) - nothing fancy and to the point.
I have a dead tree version of the book, purchased from Canadian Amazon. Not sure which printing (if you had multiple), it's at home now and I'm in the office.
Thank you for the offer - will email you in a moment.
This article is also a nice example of just-in-time learning: learning new material is so much more fun when you have a concrete goal in mind, rather than relying on a "you'll use this later"-promise.