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Topic: basic question on Rubi 4.2 output from Int[] command
Replies: 3   Last Post: Nov 14, 2013 7:04 PM

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Albert D. Rich

Posts: 311
From: Hawaii Island
Registered: 5/30/09
Re: basic question on Rubi 4.2 output from Int[] command
Posted: Nov 14, 2013 7:04 PM
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On Wednesday, November 13, 2013 6:49:15 PM UTC-10, Albert Rich wrote:

> Here Rubi is using what I call "piecewise constant extraction" to
> simplify the integrand. (If anyone can suggest a better or more
> commonly used term for this integration technique, I would appreciate
> learning it...)

On Thursday, November 14, 2013 10:11:17 AM UTC-10, wrote:

> PS: I have seen your "piecewise constants" called "differential
> constants" by WRI's Daniel Lichtblau, but the former term is much much
> more popular according to Google.

I am glad to learn "piecewise constants" is a commonly used term. But what I really want to know is the accepted name for this powerful, but little-known, integration technique. It should rank up there with "integration by parts" and "integration by substitution"...


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