Wish this had existed in school
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I had a circular slide rule - fitted neatly in the inside pocket and was easier to use than a linear 6" rule.
I saw those in the uni shop and was tempted, but I was on student money and had to pinch pennies. But when you can buy a boxload without feeling it, you don't need them any more :(
I wanna be a eunuchs developer! Pass me a bread knife!
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I found one of my old slide rules a few months ago. I couldn't remember how to use it :sigh:
I wanna be a eunuchs developer! Pass me a bread knife!
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Here's a refresher[^]. :laugh:
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That is a lot of reading. Where is the 30 second YouTube video? ;P
My plan is to live forever ... so far so good
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Same for me, only I ended up with a RPN[^] calculator, the Omron 12SR[^]
GOTOs are a bit like wire coat hangers: they tend to breed in the darkness, such that where there once were few, eventually there are many, and the program's architecture collapses beneath them. (Fran Poretto)
HP calculators were (are?) also RPN.
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Well, in those times mobile phones had antennas. Download Microsoft Math Solver | Step-by-step math problem solver[^]
Wrong is evil and must be defeated. - Jeff Ello
If you are helping your children with math you have not seen in 20+ years, I found Alpha Wolfram (free edition) incredibly helpful. On some problems, the free version would not show all of the intermediate steps, but you could at least find the correct answer.
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HP calculators were (are?) also RPN.
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Now that you mention it, at the time when I had that Omron (around 1980), there was one HP model around that at least one of the other students used. But most were using TI caluclators with direct input and brackets. I believe RPN was all but forgotten by the time I went to university (1984). That's when I got my first programmable pocket calculator, with a whopping 10 KB memory (quite a lot when you take into consideration this was still the high time of the 8 bit home computers)
GOTOs are a bit like wire coat hangers: they tend to breed in the darkness, such that where there once were few, eventually there are many, and the program's architecture collapses beneath them. (Fran Poretto)
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Now that you mention it, at the time when I had that Omron (around 1980), there was one HP model around that at least one of the other students used. But most were using TI caluclators with direct input and brackets. I believe RPN was all but forgotten by the time I went to university (1984). That's when I got my first programmable pocket calculator, with a whopping 10 KB memory (quite a lot when you take into consideration this was still the high time of the 8 bit home computers)
GOTOs are a bit like wire coat hangers: they tend to breed in the darkness, such that where there once were few, eventually there are many, and the program's architecture collapses beneath them. (Fran Poretto)
It didn't take long to get used to RPN, and then I hated other calculators. What's with these stupid parentheses buttons?! And the first time I saw a parser and stack for interpreting arithmetic expressions in Comp Sci class, it was like deja vu.
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Well, in those times mobile phones had antennas. Download Microsoft Math Solver | Step-by-step math problem solver[^]
Wrong is evil and must be defeated. - Jeff Ello
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It didn't take long to get used to RPN, and then I hated other calculators. What's with these stupid parentheses buttons?! And the first time I saw a parser and stack for interpreting arithmetic expressions in Comp Sci class, it was like deja vu.
Robust Services Core | Software Techniques for Lemmings | Articles
Does anyone remember the Forth programming language? (The top leader even presribed it, and the operations: Go Forth, and multipy.) It was stack based: You pushed two numbers on the stack, executed a multiply, and the two top stack entries were replaced by their product. I was working for a company that developed (a few) commercial applications in Forth. The guys in that team were incapable of using TI calculators, they were dependent on HP models.
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It didn't take long to get used to RPN, and then I hated other calculators. What's with these stupid parentheses buttons?! And the first time I saw a parser and stack for interpreting arithmetic expressions in Comp Sci class, it was like deja vu.
Robust Services Core | Software Techniques for Lemmings | Articles
I had to learn both systems since I helped my friends with math, and they all used TIs. :^)
GOTOs are a bit like wire coat hangers: they tend to breed in the darkness, such that where there once were few, eventually there are many, and the program's architecture collapses beneath them. (Fran Poretto)
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Well, in those times mobile phones had antennas. Download Microsoft Math Solver | Step-by-step math problem solver[^]
Wrong is evil and must be defeated. - Jeff Ello
Borland Eureka existed in the 90s.
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Borland Eureka existed in the 90s.
Never knew it existed.
Wrong is evil and must be defeated. - Jeff Ello
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I started high school with a slide rule and finished with an HP-45 calculator. I didn't think it could get much better. :laugh:
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High school was Sept 1980- June 1984 Chemistry in 1983 even though we had calculators the chemistry teachers required us to use slide rules. I got to use my Dad's, he was an electrical engineer, had to be VERY careful with it.
In what country were slide rules still used in schools in 1980-84? I still remember in 1980 my maths teacher complaining that youngsters didn't know how to use slide rules any more. Us youngsters, with our spiffy new TI25 scientific calculators, were "meh!".
