Instruct: Classify a given Amazon review as either positive or negative.
Query: Useless

This is a bizzar of prorietary code (TradeStation Language), and 20 yrs old fortran code at the Appendix. I am wondering who will be using this code? Lot of spaghetti Mathematics which is neither simple focussing on concepts , nor deep enough to understant the mathematical details that's very poorly presented. In chapter 8 about uncovering cycles, after all the poorly written mathematical stuff, there is no mention on how to use the uncovered cycles in trading which is much more important than running after sines and cosines ...although I am a Computer Engineer with mathematical background , I got lost...I am forced to read this book as a reading material for CMT2 certificate , however I consider it a very badly written book with no real focus neither elegant mathematical details nor usable code nor Trading concepts