Advanced Test Driven Development, Refactoring, & Clean Code: A Master Course. 13 weeks, two hours every Wednesday, starting April 3rd. Be there! And tell all your nostr friends!

Adv. Test Driven Development, Refactoring, & Clean Code: A Master Course

Chicago, IL, USA

Well, it looks like I'm going to have to write a significant clojure macro. Wish me luck!

Good Morning Nostr, My lovely wife and I have retired, once again, to our Northern Hidewawy. The weather is awful -- foggy, slushy, rainy -- ugh. But life is good and I'm looking forward to relaxing with her and seeing friends. I just watched (re-watched) one of Rich Hickey's remarkable talks from 2018. The first half is all about the problems with "Maybe" and "Nilable". The second half if much more clojure specific; and makes a promise that I think he has yet to fulfill. So you can skip that if you are not a clojurian.

Good Morning Nostrs. Today on X someone said: Scientific consensus is well established on climate change issue: It is human made, and drastic reduction of emissions is required. To which I replied: “Consensus” is a political term that is used to obscure the actual science. It’s an argument from authority, with that authority being usurped by the arguer. The actual research indicates rising levels of CO2 and rising temperatures; but does not suggest “drastic” anything. In short, the research is interpreted, then summarized, then reinterpreted, then re-summarized, in a game of “telephone” that warps and obscures the actual results of the research to align with the goals of the politicians.

Do you know how to use a slide rule? This is my father’s from long, long ago.

There is no network!

X (formerly Twitter)

Uncle Bob Martin (@unclebobmartin) on X

There is no network!

This. Is. The. Way.

There is something very pleasing about _numerically_ calculating that e^iπ=-1. (defn cadd [[xr xi] [yr yi]] [(+ xr yr) (+ xi yi)]) (defn cmul [[xr xi] [yr yi]] [(- (* xr yr) (* xi yi)) (+ (* yr xi) (* xr yi))]) (defn cscale [[xr xi] s] [(/ xr s) (/ xi s)]) (defn cprn [[xr xi]] (prn (double xr) '+ (double xi) 'i)) (defn compound [balance rate periods] (let [period-rate (cadd [1 0] (cscale rate periods))] (loop [balance [balance 0] periods periods] (if (zero? periods) balance (recur (cmul balance period-rate) (dec periods)))))) (cprn (compound 1 [0 3.141592653589793] 100000)) -1.0000493492396174 + 1.0335963488293152E-9 i

Another lesson I learned long, long ago: Don't drink and code! 8 hours bottle to throttle.