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I made a small program that can be used to design and simulate a slide rules. In a world of a modern digital computers there's not much use for slide-rules anymore but the application gives an opportunity to study and see how the things were done in the past. I was about 5 years old when I hold a real slide-rule in my hand but didn't understood much about it back then. And they got replaced pretty quickly with more advanced devices soon after that.
Slide-rules can compute pretty much everything that a hand held calculator can do.
Via a use of the slide:
Division, Multiplication y/x, y*x. Exponential functions x^y, Log_b(x).
By cursor lookup:
lg(x), Sqrt(x), x^2, sin(x), cos(x), tan(x), asin(x), acos(x), atan(x), Sqrt(1-x^2)
When dealing with larger numbers it's necessary to break them down into a smaller ones. (e.g. Sqrt(450) = Sqrt(4.5) * 10)
Download a Homebrew SlideRule: My Orbiter Page
This is also the first program that I have ever written in C#, so, it was educational experience from that point of view too.
Here's screen shot of 4.5^0.3 = 1.57
I was hoping to come-up with something more Orbiter related surprise but anyway..
Some references:
www.saunalahti.fi/aholop/Laskutikku.htm (in Finnish)
^Good instructions on how to use a slide rule. Google translator seems to be working pretty well^
The University Of Utah: What Can You Do With A Slide Rule?
Slide-rules can compute pretty much everything that a hand held calculator can do.
Via a use of the slide:
Division, Multiplication y/x, y*x. Exponential functions x^y, Log_b(x).
By cursor lookup:
lg(x), Sqrt(x), x^2, sin(x), cos(x), tan(x), asin(x), acos(x), atan(x), Sqrt(1-x^2)
When dealing with larger numbers it's necessary to break them down into a smaller ones. (e.g. Sqrt(450) = Sqrt(4.5) * 10)
Download a Homebrew SlideRule: My Orbiter Page
This is also the first program that I have ever written in C#, so, it was educational experience from that point of view too.
Here's screen shot of 4.5^0.3 = 1.57
I was hoping to come-up with something more Orbiter related surprise but anyway..
Some references:
www.saunalahti.fi/aholop/Laskutikku.htm (in Finnish)
^Good instructions on how to use a slide rule. Google translator seems to be working pretty well^
The University Of Utah: What Can You Do With A Slide Rule?
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