what are the differences between these two arrays?

Question

float A[20,4,6]
double B[i][j][k]

Answer 1

Apart from the type (float for one and double for the other) the first is a one-dimentional array with 3 subscripts and the second a 3D array with i*j*k subscripts

edit: sorry I know only C and I thought I saw A[]={20,4,6}; that is a one-dimentional array with 3 subscripts.
The thing you wrote is illegal in C.
But possibly in another language is actually a one-dimensional array with 3 subscripts.

Answer 2

yamila blanco
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Answer 3

I don't know much python, but in java, the first one is wrong ,you need to to define the array as float[] A = {20, 4, 6}; , and the second one is wrong too, you need to define the array as double[][][] B = new double[i][j][k];