# Two Matrix Multiplication in golang

Go program for Two Matrix Multiplication. Here more solutions.

``````package main
import "fmt"
/*
GoLang program for
Two matrix multiplication
*/
// Display the element of given 2d matrix
func printRecord(matrix[][] int) {
fmt.Println("  --------------")
// Assume  N x N Matrix size
var row int = len(matrix)
var col int = len(matrix[0])
// Iterate the row element
for i := 0 ; i < row ; i++ {
// Iterate the column element
for j := 0 ; j < col ; j++ {
// Display element value
fmt.Print("  ", matrix[i][j])
}
fmt.Println()
}
fmt.Println()
}
func multiplication(a, b [][]int) {
// Get the size
var row int = len(a)
var col int = len(a[0])
// This matrix are store the result of multiplication
var result = make([][] int, row)
for i := 0 ;i < row; i++{
result[i] =  make([] int, col)
}
for i := 0 ; i < row ; i++ {
for j := 0 ; j < col ; j++ {
// Set the initial value of new matrix element
result[i][j] = 0
for k := 0 ; k < row ; k++ {
// Multiply matrix A [i] row and [k] columns to
// the Matrix B [k] columns and [j] rows.
result[i][j] += a[i][k] * b[k][j]
}
}
}
fmt.Println("  Matrix A")
// Print element of matrix x
printRecord(a)
fmt.Println("  Matrix B")
// Print element of matrix y
printRecord(b)
fmt.Println("  Matrix [(A) x (B)]")
// Display resultant matrix
printRecord(result)
}
func main() {
// Define matrix A
var a = [][] int {
{
1,
2,
3,
}, {
6,
1,
2,
}, {
5,
4,
3,
},
}
// Define matrix B
var b = [][] int {
{
3,
1,
3,
}, {
1,
1,
2,
}, {
2,
2,
3,
},
}
multiplication(a, b)
}``````

Output

``````  Matrix A
--------------
1  2  3
6  1  2
5  4  3

Matrix B
--------------
3  1  3
1  1  2
2  2  3

Matrix [(A) x (B)]
--------------
11  9  16
23  11  26
25  15  32
``````

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