Know what is X and Y?
1)In Carroll’s Through the Looking-Glass (1871),proximal to the beginning, Alice manages to discover and reads “Jabberwocky“. “X”, a word appears twice in the poem, which accounts a young boy’s quest to slay the Jabberwock:
He took his X sword in hand:
One, two! One, two! And through and through
The X blade went snicker-snack!
He left it dead, and with its head
He went galumphing back.
2)The website of Tech-X Corporation claims:
“Y enables researchers to simulate complex physical phenomena in less time and at a much lower cost than empirically testing process changes for plasma and vapor deposition processes.Y offers a unique combination of physical models to cover the entire range of plasma simulation problems. Ionization and neutral gas models enable Y to bridge the gap between plasma and neutral flow physics.
Y is used by scientists and engineers to simulate the physical behavior of devices and processes for many industrial and research applications, including laser wakefield accelerators, plasma thrusters, high-power microwave guides, and plasma processing chambers.”