RosettaCodeData/Task/Matrix-multiplication/Sidef/matrix-multiplication.sidef

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func matrix_multi(a, b) {
var m = [[]]
for r in ^a {
for c in ^b[0] {
for i in ^b {
m[r][c] := 0 += (a[r][i] * b[i][c])
}
}
}
return m
}
 
var a = [
[1, 2],
[3, 4],
[5, 6],
[7, 8]
]
 
var b = [
[1, 2, 3],
[4, 5, 6]
]
 
for line in matrix_multi(a, b) {
say line.map{|i|'%3d' % i }.join(', ')
}