Like I said earlier, as far as I know mathematics developed for physical applications.
And as I have shown with multiple examples, this is not so in many cases.
My biggest assertion in this thread is that mathematics is meaningless until you apply it to a physical concept.
To demonstrate that, you would have to provide a precise and unambiguous definition of “meaning” (a slippery concept at the best of times) and then show that mathematical propositions fall outside this definition. If you propose that direct application or correspondence to a “physical concept” is required for an idea to be meaningful, then you have also condemned great swathes of theological, metaphysical, moral, artistic and musical endeavour to be meaningless - a rather positivist attitude for a Catholic, don’t you think?
Yep, not much. Compare those to the enormity of calculus, and you can see why most people ignore those guys entirely
Well, if your contention is that the work of Napier, Descartes, Fermat, Desargues and Pascal is “not much” then that says more about your understanding of the history of mathematics than anything else or you are just being silly.
Note also that Napier invented logarithms to ease solving Keplers orbits
Since Napier, by his own report, started developing his system of logarithms in 1594, and Kepler did not publish Astronomia Nova until 1609 then that is not possible. Kepler and others seized Napier’s methods to facilitate astronomic calculations soon after they were published - but the history of logarithms supports my contention that mathematical developments often precede, sometimes by many years, their practical application.
and Pascal’s probability theories were developed to explain gambling odds.
It’s true that Pascal was attracted to probability theory by a puzzle couched in gambling terms but it is misleading to claim that his main motivation for establishing this field was" to explain gambling odds". Furthermore, Pascal’s mathematical interests were much wider than probability including very abstract work on conical sections and projective geometry, and on number theory (the expression for the
mth power of the first
n consecutive integers) and the solution to the integral from 0 to a of x^n.
Says you. My 8 years of physics education says otherwise, as do my 3 different mathematical physics professors (as in they taught the course, not that they study mathematical physics)./
Give that a rest. Arguments from authority don’t carry any weight and you are not the only person in the world with 8 years physics education. At any rate, it doesn’t seem to have given you (or your professors) a very accurate idea of the history of maths. In contrast to your argument from (anonymous and rather dubious) authority, I gave a number of examples of mathematics that were developed long before their application was found in physics (square root of -1, complex analysis, non-Euclidean geometry, Boolean algebra, function theory, tensor analysis, matrix algebra, Fourier and Laplace transforms, Galois theory, group theory, set theory, multidimensional geometry, quaternions, octonions, topology, differential geometry etc etc). If you want to persuade us that these were developed specifically to solve physical problems then you’ll have to do better than the argument from authority and refer us to the details of these developments. I am happy to take any one of them and show how the theorems were proven well before any practical application by physicists.
I (and many of my colleagues) don’t find any of the mathematical relations to the physical surprising at all, so I guess it’s just you by yourself on that one. The reason we don’t find them surprising is that the mathematics were designed to explain the physical happenings.
I’m sorry for you and your colleagues that you are so jaded that you don’t find the intelligibility of the universe, and its ability to be described in mathematical terms - in the words of the OP, the relationship between the abstract world of mathematics and the material universe - surprising, beautiful and moving. For example, here we are today with octonions (originally a piece of pure algebraic speculation to extend the division algebras to 8 dimensions) unexpectedly finding a central role in explaining the existence of the five exceptional Lie groups (originally categorised by Killing long before any practical application arose) which have those bizarre symmetries in multiple dimensions, and which themselves have become so unexpectedly fundamental to physics. And you don’t find that surprising? And humbling?
Alec
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