I lost count of the number of calculators I have. There can be computers, spreadsheets, mobile phones and the hell with numbers... I just love calculators in general. Of my favourites I even have multiples, like the HP-15c or the Casio fx-570ms or the TI-89. There is nothing better than a literal physical calculator to crunch numbers! This was an excellent video, thank you for it!
I wasn't sure how we are supposed to subtract with the compometer gizmo, but 10's complement will always work, just like how computers use 2's complement. e.g. 23+76+1=100, ignore the carry. I notice that the calculator has the complements on the digits, e.g. 1 has an 8. This works fine, you enter 23, then enter the complement which is 76, then add 1.
I lost count of the number of calculators I have. There can be computers, spreadsheets, mobile phones and the hell with numbers... I just love calculators in general. Of my favourites I even have multiples, like the HP-15c or the Casio fx-570ms or the TI-89. There is nothing better than a literal physical calculator to crunch numbers! This was an excellent video, thank you for it!
Great documentary. Thank you !
Not sure how I ended up here, but I found this very interesting. I still use my HP-41CV that is now 40 years old.
I wasn't sure how we are supposed to subtract with the compometer gizmo, but 10's complement will always work, just like how computers use 2's complement. e.g. 23+76+1=100, ignore the carry. I notice that the calculator has the complements on the digits, e.g. 1 has an 8. This works fine, you enter 23, then enter the complement which is 76, then add 1.