Skip to main content

Scalar matrix multiplication

Here given code implementation process.

//C Program 
//Program for scalar multiplication of a matrix
#include<stdio.h>

#define ROW 4
#define COL 4


void scalar_multiply(int matrix[][COL],int k)
{
  for (int i = 0; i < ROW; ++i)
  {
    for (int j = 0; j < COL; ++j)
    {
      //Multiply element into of k
      matrix[i][j] *= k;

      printf("%4d",matrix[i][j] );
    }
    printf("\n");
  }
}
int main()
{


  int matrix[][COL]= { 
    {1, 0, 2, 3},  
    {4, 1, 1, 6},  
    {1, 1, 1, 1},  
    {5, 0, 1, 2}
  };  
  

  int k=3;
  scalar_multiply(matrix,k);

  return 0;
}

Output

   3   0   6   9
  12   3   3  18
   3   3   3   3
  15   0   3   6
/*
  C++ Program
  Program for scalar multiplication of a matrix
*/
#include<iostream>
#define ROW 4
#define COL 4
using namespace std;

class MyMatrix {
  public:
  void scalar_multiply(int matrix[][COL],int k)
  {
    for (int i = 0; i < ROW; ++i)
    {
      for (int j = 0; j < COL; ++j)
      {
        //Multiply element into of k
        matrix[i][j] *= k;

        cout<<"  "<<matrix[i][j] ;
      }
      cout<<endl;
    }
  }
};
int main() {
  MyMatrix obj;
  int matrix[][COL] = { 
    {1, 0, 2, 3},  
    {4, 1, 1, 6},  
    {1, 1, 1, 1},  
    {5, 0, 1, 2}
  };  
  
  int k=3;
  obj.scalar_multiply(matrix,k);


  return 0;
}

Output

  3  0  6  9
  12  3  3  18
  3  3  3  3
  15  0  3  6
/*
  Java Program
  Program for scalar multiplication of a matrix
*/
public class MyMatrix {


  public void scalar_multiply(int [][]matrix,int k)
  {
    //Get the size of matrix
    int row = matrix.length;
    int col = matrix[0].length;

    for (int i = 0; i < row; ++i)
    {
      for (int j = 0; j < col; ++j)
      {
        //Multiply element into of k
        matrix[i][j] *= k;

        System.out.print("  "+matrix[i][j] );
      }
      System.out.print("\n");
    }
  }
  public static void main(String[] args) {
    MyMatrix obj = new MyMatrix();
    //Define matrix 
    int [][]matrix = { 
      {1, 0, 2, 3},  
      {4, 1, 1, 6},  
      {1, 1, 1, 1},  
      {5, 0, 1, 2}
    };  
    

    int k=3;
    obj.scalar_multiply(matrix,k);
  }
}

Output

  3  0  6  9
  12  3  3  18
  3  3  3  3
  15  0  3  6
<?php
/*
  Php Program
  Program for scalar multiplication of a matrix
*/
class MyMatrix {
	public 	function scalar_multiply($matrix, $k) {
		//Get the size of matrix
		$row = count($matrix);
		$col = count($matrix[0]);
		for ($i = 0; $i < $row; ++$i) {
			for ($j = 0; $j < $col; ++$j) {
				//Multiply element into of k
				$matrix[$i][$j] *= $k;
				echo(" ". $matrix[$i][$j]);
			}
			echo("\n");
		}
	}
};

function main() {
	$obj = new MyMatrix();
	//Define matrix 
	$matrix = array(array(1, 0, 2, 3), array(4, 1, 1, 6), array(1, 1, 1, 1), array(5, 0, 1, 2));
	$k = 3;
	$obj->scalar_multiply($matrix, $k);

}
main();

Output

 3 0 6 9
 12 3 3 18
 3 3 3 3
 15 0 3 6
/*
 Node Js Program
 Program for scalar multiplication of a matrix
*/
class MyMatrix {
	scalar_multiply(matrix, k) {
		//Get the size of matrix
		var row = matrix.length;
		var col = matrix[0].length;
		for (var i = 0; i < row; ++i) {
			for (var j = 0; j < col; ++j) {
				//Multiply element into of k
				matrix[i][j] *= k;
				process.stdout.write(" " + matrix[i][j]);
			}

			process.stdout.write("\n");
		}
	}
}

function main(args) {
	var obj = new MyMatrix();
	//Define matrix 
	var matrix = [
		[1, 0, 2, 3],
		[4, 1, 1, 6],
		[1, 1, 1, 1],
		[5, 0, 1, 2]
	];
	var k = 3;
	obj.scalar_multiply(matrix, k);
}
main();

Output

 3 0 6 9
 12 3 3 18
 3 3 3 3
 15 0 3 6
using System;
/*
  C# Program
  Program for scalar multiplication of a matrix
*/

public class MyMatrix {
	public void scalar_multiply(int[,] matrix, int k) {
		//Get the size of matrix
		int row = matrix.GetLength(0);
		int col = matrix.GetLength(1);
		for (int i = 0; i < row; ++i) {
			for (int j = 0; j < col; ++j) {
				//Multiply element into of k
				matrix[i,j] *= k;
				Console.Write(" " + matrix[i,j]);
			}
			Console.Write("\n");
		}
	}
	public static void Main(String[] args) {
		MyMatrix obj = new MyMatrix();
		//Define matrix 
      	int[,] matrix = {
			{
				1,
				0,
				2,
				3
			},
			{
				4,
				1,
				1,
				6
			},
			{
				1,
				1,
				1,
				1
			},
			{
				5,
				0,
				1,
				2
			}
		};
		int k = 3;
		obj.scalar_multiply(matrix, k);
	}
}

Output

 3 0 6 9
 12 3 3 18
 3 3 3 3
 15 0 3 6
# Python 3 Program
# Program for scalar multiplication of a matrix
class MyMatrix :
	def scalar_multiply(self, matrix, k) :
		# Get the size of matrix
		row = len(matrix)
		col = len(matrix[0])
		i = 0
		while (i < row) :
			j = 0
			while (j < col) :
				# Multiply element into of k
				matrix[i][j] *= k
				print(" ", matrix[i][j], end = "")
				j += 1
			
			print(end = "\n")
			i += 1
		
	

def main() :
	obj = MyMatrix()
	matrix = [
		[1, 0, 2, 3],
		[4, 1, 1, 6],
		[1, 1, 1, 1],
		[5, 0, 1, 2]
	]
	k = 3
	obj.scalar_multiply(matrix, k)


if __name__ == "__main__":
	main()

Output

  3  0  6  9
  12  3  3  18
  3  3  3  3
  15  0  3  6
# Ruby Program 
# Program for scalar multiplication of a matrix
class MyMatrix 
	def scalar_multiply(matrix, k) 
		# Get the size of matrix
		row = matrix.length
		col = matrix[0].length
		i = 0
		while (i < row) 
			j = 0
			while (j < col) 
				# Multiply element into of k
				matrix[i][j] *= k
				print(" ", matrix[i][j])
				j += 1
			end
			print("\n")
			i += 1
		end
	end
end
def main() 
	obj = MyMatrix.new()
	matrix = [
		[1, 0, 2, 3],
		[4, 1, 1, 6],
		[1, 1, 1, 1],
		[5, 0, 1, 2]
	]
	k = 3
	obj.scalar_multiply(matrix, k)
end
main()

Output

 3 0 6 9
 12 3 3 18
 3 3 3 3
 15 0 3 6

/*
 Scala Program
 Program for scalar multiplication of a matrix
*/
class MyMatrix {
	def scalar_multiply(matrix: Array[Array[Int]], k: Int): Unit = {
		//Get the size of matrix
		val row: Int = matrix.length;
		val col: Int = matrix(0).length;
		var i: Int = 0;
		while (i < row) {
			var j: Int = 0;
			while (j < col) {
				//Multiply element into of k
				matrix(i)(j) *= k;
				print(" " + matrix(i)(j));
				j += 1;
			}
			print("\n");
			i += 1;
		}
	}
}
object Main {
	def main(args: Array[String]): Unit = {
		val obj: MyMatrix = new MyMatrix();
		val matrix: Array[Array[Int]] = Array(
			Array(1, 0, 2, 3),
			Array(4, 1, 1, 6),
			Array(1, 1, 1, 1),
			Array(5, 0, 1, 2));
		val k: Int = 3;
		obj.scalar_multiply(matrix, k);
	}
}

Output

 3 0 6 9
 12 3 3 18
 3 3 3 3
 15 0 3 6
/*
  Swift 4 Program
  Program for scalar multiplication of a matrix
*/
class MyMatrix {
	func scalar_multiply(_ matrix: inout [[Int]], _ k: Int) {
		//Get the size of matrix
		let row: Int = matrix.count;
		let col: Int = matrix[0].count;
		var i: Int = 0;
		while (i < row) {
			var j: Int = 0;
			while (j < col) {
				//Multiply element into of k
				matrix[i][j] *= k;
				print(" ", matrix[i][j], terminator: "");
				j += 1;
			}
			print("\n", terminator: "");
			i += 1;
		}
	}
}
func main() {
	let obj: MyMatrix = MyMatrix();
	var matrix: [
		[Int]
	] = [
		[1, 0, 2, 3],
		[4, 1, 1, 6],
		[1, 1, 1, 1],
		[5, 0, 1, 2]
	];
	let k: Int = 3;
	obj.scalar_multiply(&matrix, k);
}
main();

Output

  3  0  6  9
  12  3  3  18
  3  3  3  3
  15  0  3  6
Last updated on by Kalkicode




Comment

Please share your knowledge to improve code and content standard. Also submit your doubts, and test case. We improve by your feedback. We will try to resolve your query as soon as possible.

New Comment