MatrixQ

MatrixQ(m)

returns True if m is a list of equal-length lists.

MatrixQ(m, f)

only returns True if f(x) returns True for each element x of the matrix m.

See

• Wikipedia - Matrix (mathematics)
• Youtube - Linear transformations and matrices | Essence of linear algebra, chapter 3
• Youtube - Matrix multiplication as composition | Essence of linear algebra, chapter 4

Examples

>> MatrixQ({{1, 3}, {4.0, 3/2}}, NumberQ)
True

Implementation status

• ✅ - full supported

Github

• Implementation of MatrixQ