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ColumnAt function

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Fully qualified name: Std.Arrays.ColumnAt

function ColumnAt<'T>(column : Int, matrix : 'T[][]) : 'T[]

Summary

Extracts a column from a matrix.

Description

This function extracts a column in a matrix in row-wise order. Extracting a row corresponds to element access of the first index and therefore requires no further treatment.

Type Parameters

'T

The type of each element of matrix.

Input

column

Column of the matrix

matrix

2-dimensional matrix in row-wise order

Example

let matrix = [[1, 2, 3], [4, 5, 6], [7, 8, 9]];
let column = ColumnAt(0, matrix);
// same as: column = [1, 4, 7]

See Also

  • Microsoft.Quantum.Arrays.Transposed
  • Microsoft.Quantum.Arrays.Diagonal