# Ajit R. Jadhav's blog

## I presented my new theory of QM yesterday

I presented my new theory of QM yesterday.

Just that.

Best,

--Ajit

## Request to physicists: Would you be willing to provide some informal feedback on my new approach to QM?

I have a request to make to physicists: Would they be willing to provide some informal feedback on my new approach to QM?

Update (2021.09.21 15:57 IST): There were unusually many blog hits for the document. ... I do like the work getting noticed, but still, I guess, a clarification is in order:

## The Machine Learning as an Expert System

1.

To cut a somewhat long story short, I think that I can see'' that Machine Learning (including Deep Learning) can actually be regarded as a rules-based expert system, albeit of a special kind.

I am sure that people must have written articles expressing this view. However, simple googling didn’t get me to any useful material.

I would deeply appreciate it if someone could please point out references in this direction. Thanks in advance.

2.

## Also remember Alcoa

Also remember Alcoa.

## Yes I know about the [essentials of] QM!

Check out here [at my personal blog] [^] and the post before that.

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Have a happy holiday season!

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Sincerely,

--Ajit

## A small'' but interesting riddle from the theory of vibrations

A small'' but interesting riddle from the basic theory of vibrations. Haven't run into it in any physics/classical mechanics text/reference.

## Expansion of a function into a basis set

Consider a neat'' function such as what an engineer is most likely to use in his typical theory/work. Such a function would typically be: (i) defined over a single finite interval, (ii) continuous throughout, and (iii) smooth enough. In other words, the sort of a function they used when they introduced the very idea of a graph of a function to you, back in high-school. ... Feel free to add any other qualifications you like, but note them explicitly, e.g., (iv) bounded throughout, and (v) periodic.

## MWR for the first- and third-order differential equations

Hi all,

In engineering sciences, we usually end up using either the second- or the fourth-order differential equations, and the MWR (the method of weighted residuals) works pretty well for them.

The question is: how about the first- and the third-order differential equations? Why don't we see any applications of MWR for these odd-ordered differential equations? What gives?

## Any tips/comments regarding the latest version of the C++ library: Eigen (v. 3.0)?

Hi all,

1. A new version of Eigen (v 3.0 now) is out (on March 23, 2011), and it seems promising. First, a few links:

The main page for the project is here: [^]. The page for v.3.0 is here: [^]. It seems to be very fast: [^].