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... hesitantly raises his hand Back in ... 1991? I did use the C version of the Simplex Method almost straight from the book. I needed a concise linear program
by Pamar 5y ago
... hesitantly raises his hand
Back in ... 1991? I did use the C version of the Simplex Method almost straight from the book. I needed a concise linear programming optimization module that would be called in the middle of a not-really-concise production programming system handling (automotive) engines and gearboxes production for a couple of FIAT plants.
Basically a short-period scheduler to decide what to produce (slave to an immense system running on IBM mainframes; COBOL, again).
So I quickly put together the C version (with minimal modifications) and it chugged along happily on a VAX for at least a decade.
- eesmith 5y agoThanks for the counter-example. :) Did your company also license the code? To explain my frame of mine, I was thinking how it was used in 2007 or later. In the early 1990s, there wouldn't have been much off-the-shelf/free&open-source options. The GNU Scientific Library didn't start until 1996, for example (according to Wikipedia).
- Pamar 5y agoNo. I was aware of the issue at the time, and this is part of the reason for me to alter the source a bit. In my defense, the people I was working for at the time did not even understood the topic when I talked about that.
- eesmith 5y agoI think also that 30+ years ago software copyright was farther in the background. The "Don't Copy that Floppy" propaganda, for example, didn't start until 1992.