3.5.2 - infinite streams
3.5.2 - impl `take` and `drop`
3.5.2 - def stream implicitly
ex 3.53 - done
ex 3.54 - done
ex 3.55 - done
ex 3.56 - done
ex 3.57 - done
ex 1.1 - done
ex 3.58 - done
ex 3.59.a - done
ex 3.59.a - stream of x^0, x^1, x^2 ...
ex 3.59 - done
ex 3.60 - demonstration
ex 3.60 - impl
expose sine and cosine
ex 3.60 - verification
ex 3.60 - done
ex 3.60 - another test
ex 3.61 - working