Is RPN still relevant?

[dm319]

(12-18-2023 11:00 AM)carey Wrote:  The bottom line is RPN is fun, often useful and a great brain exercise, but its mythical status, justifiable in the past when there was little competition, is a chimera today.

This morning I arrived at work with a range warning in my car - I had 15% battery left. I knew I needed a bit of a top up to get back home, but the work electric chargers are a little pricey. So if I plugged it in, when would I have to go on my app to stop the charging?

I know some numbers - 60km to get home, the car is running at around 30kwh/100km at the moment (yes I know not good!), 15% of a 64.7kwh battery left, and the app says I'm charging at 11kW. As I walked up to my office, I pulled out my phone with free42, and had a timer running for 55 mins before I got there.

If anyone can visualise that formula in their mind, and know how many preceding brackets to put into their algebraic calculator, then I salute you. It's not how my mind works, which is to put the numbers in my line of sight and poke them until they tell me what I want.

Also, I grew up on algebraic - in fact I never saw an RPN until I ordered a 12C off ebay much later in my adult life - i.e. RPN was a choice for me rather than a habit.