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I really like articles about obsolete technology. But author of the video was surprised that the calculator was using Reversed Polish Notation(RPN). Hewlett-Pa
by NotSwift 5y ago
I really like articles about obsolete technology.
But author of the video was surprised that the calculator was using Reversed Polish Notation(RPN). Hewlett-Packard (HP) produced a whole line of calculators that also used RPN. It is a pretty smart idea to use on calculators where there is not a lot of memory available.
- leephillips 5y agoAlso, fewer keystrokes, no?
- jsjohnst 5y agoDepends on what you are doing, but it can be fewer keystrokes for more complicated calculations, aka not basic arithmetic like 33 x 42, which is six keystrokes either way (3,3,x,4,2,= or 3,3,Enter,4,2,x). Edit: replaced asterisks as multiplication symbol for x’s to avoid markup processing.
- jonsen 5y agoA space after * ( 3 3 * 4 2 = vs. 3 3 ^ 4 2 * ) or make it code 3 3 * 4 2 = 3 3 ^ 4 2 *
- deleted 5y ago[deleted]
- disabled 5y agoRPN calculators are still being sold by HP. This includes financial, scientific, and graphing calculators. The current RPN HP graphing calculators leave a lot left to be desired, and aren’t as good as the old ones. I have an HP 50g RPN graphing calculator which is amazing. But, there are even better ones that are no longer in production. Swiss Micros makes remakes of such amazing HP calculators: https://www.swissmicros.com/products https://www.swissmicros.com/products At some point I will purchase the DM41X from there.
- TooSmugToFail 5y agoYeah, I had a HP-48 during my uni years. An awesome machine.