Practical use for 4D + arrays

Question

I studied Java and C ++ this year, and I'm curious; What practical applications exist for a 4 or even 5-dimensional array? My teacher basically says that you are using the wrong data type if you want to use a 4-dimensional array.

Have you ever used 4 out of 5 (or more) dimensional arrays? What did you use it for? What practical application can you come up with for them?

Thank!

Answer 1

4D- - 3D-, [x-cord] [y-cord] [z-cord] []. 4D- 4D-. , .

Speed = arr[5][9][6][1500];

, x 5, 9, z 6, 1500 .

5D:

int left; //#of cars left in world
left = allCars[year][brand][color][condition][horsepower];

int ( aka Ferrari = 1, . 0, , 1 ).

№ 1947 Ferrari, 200 .

, .

Answer 2

Sodoku 4 , , 4- int.

4D (GIF-). , 4 , . 4- 3- ( , 4D). 3- .

, 4- , , . , "" 3- 4- . .

Tesseract

Answer 3

,

 inventory[size][length][color][fit] = number_received

. , , , .

Answer 4

, , , , , .

http://en.wikipedia.org/wiki/Tensor#Applications

4 , .

http://www.oonumerics.org/FTensor/FTensor.pdf

http://mpqc.svn.sourceforge.net/viewvc/mpqc/trunk/mpqc/src/lib/chemistry/qc/lmp2/lmp2.cc?revision=9342&view=markup&pathrev=9492

Answer 5

, , 3D-, , , , (, , , ). , .