- #1

tomas

Is their a 4-D coordinate plane?

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- #1

tomas

Is their a 4-D coordinate plane?

- #2

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suppose you are measuring a point on in a room. it can be x from one wall, y from another, and z from the floor. but what if one were to measure an event that took place at a point in this room? to do so you must introduce t.

- #3

HallsofIvy

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It's not uncommon for physicists working in statistical mechanics to use an "n-dimensional" space where n is some huge number: 3 times the number of particles involved.

And, of course, "functional analysis"- used in theory of differential equations- regularly works with infinite dimensional spaces.

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