public MultiplyBy ( Matrix passedMatrix ) : Matrix | ||
passedMatrix | Matrix | |
return | Matrix |
public void Matrix_StandardMatrixMultiplyTest() { Matrix matrix1 = new Matrix(3, 2); matrix1.SetElement(0, 0, 1); matrix1.SetElement(0, 1, 1); matrix1.SetElement(1, 0, 2); matrix1.SetElement(1, 1, 0); matrix1.SetElement(2, 0, 0); matrix1.SetElement(2, 1, 3); Matrix matrix2 = new Matrix(2, 4); matrix2.SetElement(0, 0, 0); matrix2.SetElement(0, 1, 1); matrix2.SetElement(0, 2, 1); matrix2.SetElement(0, 3, 0); matrix2.SetElement(1, 0, 2); matrix2.SetElement(1, 1, 3); matrix2.SetElement(1, 2, 0); matrix2.SetElement(1, 3, 1); Matrix answerMatrix = new Matrix(3, 4); answerMatrix.SetElement(0, 0, 2); answerMatrix.SetElement(0, 1, 4); answerMatrix.SetElement(0, 2, 1); answerMatrix.SetElement(0, 3, 1); answerMatrix.SetElement(1, 0, 0); answerMatrix.SetElement(1, 1, 2); answerMatrix.SetElement(1, 2, 2); answerMatrix.SetElement(1, 3, 0); answerMatrix.SetElement(2, 0, 6); answerMatrix.SetElement(2, 1, 9); answerMatrix.SetElement(2, 2, 0); answerMatrix.SetElement(2, 3, 3); Matrix resultingMatrix = matrix1.MultiplyBy(matrix2); bool answer = (resultingMatrix == answerMatrix); answer.Should().BeTrue(); }
public void PseudoInvSolveTest() { double[,] a = { { 0, 0 }, { 0,2 } }; double[,] P; P=Matrix.GetPseudoInverse(a); double[] b = { 0, 1 }; var x = Matrix.PseudoInvSolve(P, b); var testResult = new Matrix(2, 2); testResult.SetColumn(0, a.GetColumn(0)); testResult.SetColumn(1, a.GetColumn(1)); var tX = new Matrix(x); var tB = new Matrix(b); (testResult.MultiplyBy(tX) == tB).Should().BeTrue(); }
public void LUSolveTest() { double[,] a = {{4, 1, 1, 1}, {-1, 2, 1, 1}, {1, 1, 2, 2}, {1, 1, 2, 4}}; double[,] l, u; Matrix.LUDecomp(a, out l, out u); double[] b = {2.4, 1.4, 1.7, 25}; var x=Matrix.LUSolve(l, u, b); var testResult=new Matrix(4,4); testResult.SetColumn(0, a.GetColumn(0)); testResult.SetColumn(1, a.GetColumn(1)); testResult.SetColumn(2, a.GetColumn(2)); testResult.SetColumn(3, a.GetColumn(3)); var tX=new Matrix(x); var tB=new Matrix(b); (testResult.MultiplyBy(tX)==tB).Should().BeTrue(); }
public void Matrix_IdentityMatrixMultiplyTest() { Matrix matrix1 = new Matrix(3, 2); matrix1.SetElement(0, 0, 1); matrix1.SetElement(0, 1, 1); matrix1.SetElement(1, 0, 2); matrix1.SetElement(1, 1, 0); matrix1.SetElement(2, 0, 0); matrix1.SetElement(2, 1, 3); Matrix matrix2 = new Matrix(2, 2); matrix2.SetElement(0, 0, 1); matrix2.SetElement(0, 1, 0); matrix2.SetElement(1, 0, 0); matrix2.SetElement(1, 1, 1); Matrix resultingMatrix = matrix1.MultiplyBy(matrix2); bool answer = (resultingMatrix == matrix1); answer.Should().BeTrue(); }