- #1

lekh2003

Gold Member

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## Main Question or Discussion Point

I am conducting research into the matrix exponential, and I would like to discuss the mathematical development of the exponential, and eventually some applications in terms of quantum physics.

Currently, my problem is tracking down the original usage of this technique. I am trying to find a field of mathematics where it was first used, or perhaps an article in a journal that discusses the creation of the technique from the 19th century or so. I have found many applications, such as with differential equations, but no discussion of the origins of the methodology.

Can anyone help me out?

Currently, my problem is tracking down the original usage of this technique. I am trying to find a field of mathematics where it was first used, or perhaps an article in a journal that discusses the creation of the technique from the 19th century or so. I have found many applications, such as with differential equations, but no discussion of the origins of the methodology.

Can anyone help me out?