Changes in src/LinearAlgebra/Matrix.hpp [57f243:5b4605]

File:

• src/LinearAlgebra/Matrix.hpp (modified) (3 diffs)

src/LinearAlgebra/Matrix.hpp

@@ -51 +51 @@
 
   /**
+   * Set all matrix entries to zero.
+   */
+  void zero();
+
+  /**
    * Access the matrix at index (i,j)
    */
@@ -96 +101 @@
   Matrix invert() const;
 
+  /**
+   * Diagonalizes a matrix and sets its rows to the resulting eigenvalues.
+   * The eigenvalues are returned as a vector.
+   *
+   * Rather costly, so use precomputation as often as possible.
+   */
+  Vector transformToEigenbasis();
+
+  /**
+   * Calculate the transpose of the matrix.
+   */
+  Matrix transpose() const;
+  void transpose();
+
   // operators
   Matrix &operator=(const Matrix&);
 
-  Matrix &operator+=(const Matrix&);
-  Matrix &operator-=(const Matrix&);
-  Matrix &operator*=(const Matrix&);
+  const Matrix &operator+=(const Matrix&);
+  const Matrix &operator-=(const Matrix&);
+  const Matrix &operator*=(const Matrix&);
 
-  Matrix &operator*=(const double);
+  const Matrix &operator*=(const double);
 
-  Matrix operator+(const Matrix&) const;
-  Matrix operator-(const Matrix&) const;
-  Matrix operator*(const Matrix&) const;
+  const Matrix operator+(const Matrix&) const;
+  const Matrix operator-(const Matrix&) const;
+  const Matrix operator*(const Matrix&) const;
 
   bool operator==(const Matrix&) const;
@@ -121 +140 @@
 };
 
-Matrix operator*(const double,const Matrix&);
-Matrix operator*(const Matrix&,const double);
+const Matrix operator*(const double,const Matrix&);
+const Matrix operator*(const Matrix&,const double);
 
 /**