Creating a matrix from the list of its columns or rows

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Creating a matrix from the list of its columns or rows
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To make a new matrix given the list of its rows (as a list of arrays of real) coerce the list into one array of real: this will provide the data for the matrix.
set a to {r1, r2, r3} as array of real
set m to {class:matrix, ncols:200, nrows:3, array of real:a}

To make a new matrix given the list of its columns (as a list of arrays of real), coerce the list into a matrix.
set m to {c1, c2, c3} as matrix


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