Szathmáry László honlapja @ DEIK

Let's see how to create a matrix. In Python, it's a list of lists. Similarly, in Nim it can be a sequence of sequences.

(1) matrix literal
matrix = [[2, 3], [5, 4], [6, 9]] print(matrix) # [[2, 3], [5, 4], [6, 9]]	let matrix: seq[seq[int]] = @[@[2, 3], @[5, 4], @[6, 9]] echo matrix # @[@[2, 3], @[5, 4], @[6, 9]]

Let's build it row by row:

(2) build row by row
matrix = [] matrix.append([2, 3]) matrix.append([5, 4]) matrix.append([6, 9]) print(matrix) # [[2, 3], [5, 4], [6, 9]]	var matrix: seq[seq[int]] = @[] matrix.add(@[2, 3]) matrix.add(@[5, 4]) matrix.add(@[6, 9]) echo matrix # @[@[2, 3], @[5, 4], @[6, 9]]

Matrix