Kronecker product: Difference between revisions

</pre>

=={{header|Wren}}==

{{libheader|Wren-fmt}}

{{libheader|Wren-matrix}}

The above module already includes a method to calculate the Kronecker product.

<lang ecmascript>import "/fmt" for Fmt

import "/matrix" for Matrix

var a1 = [

[1, 2],

[3, 4]

]

var a2 = [

[0, 5],

[6, 7]

]

var a3 = [

[0, 1, 0],

[1, 1, 1],

[0, 1, 0]

]

var a4 = [

[1, 1, 1, 1],

[1, 0, 0, 1],

[1, 1, 1, 1]

]

var m1 = Matrix.new(a1)

var m2 = Matrix.new(a2)

Fmt.mprint(m1.kronecker(m2), 2, 0)

System.print()

var m3 = Matrix.new(a3)

var m4 = Matrix.new(a4)

Fmt.mprint(m3.kronecker(m4), 2, 0)</lang>

{{out}}

<pre>

| 0 5 0 10|

| 6 7 12 14|

| 0 15 0 20|

|18 21 24 28|

| 0 0 0 0 1 1 1 1 0 0 0 0|

| 0 0 0 0 1 0 0 1 0 0 0 0|

| 0 0 0 0 1 1 1 1 0 0 0 0|

| 1 1 1 1 1 1 1 1 1 1 1 1|

| 1 0 0 1 1 0 0 1 1 0 0 1|

| 1 1 1 1 1 1 1 1 1 1 1 1|

| 0 0 0 0 1 1 1 1 0 0 0 0|

| 0 0 0 0 1 0 0 1 0 0 0 0|

| 0 0 0 0 1 1 1 1 0 0 0 0|