Re^2: Pivoting 2 dimensional array refs

Yeah tye brought that up yesterday as well. If only I'd had the linear algebra background to have known that earlier, I may have come across the Algorithm::Loops route to getting this done.

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Re^3: Pivoting 2 dimensional array refs by John M. Dlugosz (Monsignor) on May 14, 2011 at 10:44 UTC
Linear Algebra is well worth the trouble to read about. When I was a teen, I bought a fancy new calculator, an HP 15C, that featured matrix operations. I borrowed a book on Linear Algebra in order to learn how to use it effectively. (If I knew how much they would sell for as antiques, I would not have thrown mine out!) I recall calculating a "cash discount" table at a gas station (I worked as a cashier part time) using a single operation to populate the matrix giving the table. It's basically the kind of stuff you do in APL. Later when I took L.A. in college I had an easy time. It's really the simplest "advanced" math there is. It's more like programming.	[reply]

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Re^3: Pivoting 2 dimensional array refs
by John M. Dlugosz (Monsignor) on May 14, 2011 at 10:44 UTC

When I was a teen, I bought a fancy new calculator, an HP 15C, that featured matrix operations. I borrowed a book on Linear Algebra in order to learn how to use it effectively. (If I knew how much they would sell for as antiques, I would not have thrown mine out!)

I recall calculating a "cash discount" table at a gas station (I worked as a cashier part time) using a single operation to populate the matrix giving the table. It's basically the kind of stuff you do in APL.

Later when I took L.A. in college I had an easy time. It's really the simplest "advanced" math there is. It's more like programming.

[reply]