c#.net

Question

please send full code on rectangular array for multiplication using c#.net

Vulpes · Answer

Although we have a good Java article on matrix multiplication, I couldn't find one using C# so here's some code for that: using System; class MatrixMultiplication { static void Main() { int rows1, cols1, rows2, cols2; // enter dimensions of matrices while(true) { Console.Write("Enter number of rows in first matrix: "); int.TryParse(Console.ReadLine(), out rows1); if(rows1 > 0) break; Console.WriteLine("Invalid number, try again"); } while(true) { Console.Write("Enter number of columns in first matrix: "); int.TryParse(Console.ReadLine(), out cols1); if(cols1 > 0) break; Console.WriteLine("Invalid number, try again"); } while(true) { Console.Write("
Enter number of rows in second matrix: "); int.TryParse(Console.ReadLine(), out rows2); if(rows2 > 0) break; Console.WriteLine("Invalid number, try again"); } // check whether matrix multiplication is possible if (cols1 != rows2) { Console.WriteLine("Matrix multiplication not possible as number of columns in first matrix not equal to number of rows in second matrix"); return; } while(true) { Console.Write("Enter number of columns in second matrix: "); int.TryParse(Console.ReadLine(), out cols2); if(cols2 > 0) break; Console.WriteLine("Invalid number, try again"); } // create 2D arrays to contain matrices - integral values assumed int[,] matrix1 = new int[rows1, cols1]; int[,] matrix2 = new int[rows2, cols2]; int[,] product = new int[rows1, cols2]; // enter integer values for matrix1 and matrix2 Console.WriteLine("
Enter values for each row of first matrix separated by spaces:"); int row = 0; while(row { Console.Write(" Row {0} : ", row + 1); string input = Console.ReadLine(); string[] items = input.Split(new string[]{" "}, StringSplitOptions.RemoveEmptyEntries); if (items.Length != cols1) { Console.WriteLine("Number of values does not match number of columns, try again"); continue; } bool isOK = true; for(int col = 0; col { bool isValid = int.TryParse(items[col], out matrix1[row, col]); if(!isValid) { Console.WriteLine("Row contains an invalid integer, try again"); isOK = false; break; } } if (isOK) row++; } Console.WriteLine("
Enter values for each row of second matrix separated by spaces:"); row = 0; while(row { Console.Write(" Row {0} : ", row + 1); string input = Console.ReadLine(); string[] items = input.Split(new string[]{" "}, StringSplitOptions.RemoveEmptyEntries); if (items.Length != cols2) { Console.WriteLine("Number of values does not match number of columns, try again"); continue; } bool isOK = true; for(int col = 0; col { bool isValid = int.TryParse(items[col], out matrix2[row, col]); if(!isValid) { Console.WriteLine("Row contains an invalid integer, try again"); isOK = false; break; } } if (isOK) row++; } // multiply the two matrices for (int i = 0; i { for (int j = 0; j { int sum = 0; for (int k = 0; k { sum += matrix1[i, k] * matrix2[k, j]; } product[i, j] = sum; } } Console.WriteLine("
The product matrix of size {0} x {1} is as follows:", rows1, cols2); for(int i = 0; i { for(int j = 0; j { Console.Write("{0, 3} ", product[i, j]); } Console.WriteLine(); } } }

Sivaraman Dhamodaran · Answer

Search For Matrix Multiplication on C-Sharpcorner.com

c#.net

Insert Link

Embed YouTube Video

Table Options

Insert Image

Answers (2)