Difference between Matrix and array?

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ABTJ 2020-2-23

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https://ww2.mathworks.cn/matlabcentral/answers/507048-difference-between-matrix-and-array

编辑： Stephen23 2020-2-23

Although i know that matrices are somehow subset of arrays but i want to know to the point answer. Is it only that matrices are usually having only 2dimensions,that are rows and coulmns,while arrays have a 3rd dimension also that is known as page?

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Stephen23 2020-2-23

编辑：Stephen23 2020-2-23

"Is it only that matrices are usually having only 2dimensions,that are rows and coulmns,while arrays have a 3rd dimension also that is known as page?"

The ismatrix documentation states that a matrix "A matrix is a two-dimensional array that has a size of m-by-n, where m and n are nonnegative integers."

Arrays have any number of dimensions, as far as I am concerned an array does not need to have pages, it can also be 2D (i.e. matrix) or scalar or empty. Matrices are just a convenient name given to a particular subset of arrays.

See also:

https://www.mathworks.com/matlabcentral/answers/505251-scalar-vs-matrix-vs-vector-vs-array

https://www.mathworks.com/matlabcentral/answers/342697-what-s-the-difference-between-vectors-and-arrays

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Answer 1

Matt J 2020-2-23

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https://ww2.mathworks.cn/matlabcentral/answers/507048-difference-between-matrix-and-array#answer_416940

Matrices can only be two-dimensional, whereas arrays can have any number of dimensions. The term "page" for the 3rd dimension doesn't seem to be standard outside of Matlab, but is used by many.