Inplace operators use std::transform(); and fixed resize problem when

resizing from bigger to smaller matrix.

include/internal/Matrix.h

@@ -394,9 +394,9 @@ void Matrix<T,M>::resize(size_type rows, size_type columns, const T& initialValu
     this->_matEls.resize(newSize);
     this->_rows = rows;
     this->_columns = columns;
-    for(size_type i = 0; i < oldRows; i++)
+    for(size_type i = 0; i < (oldRows > rows ? rows : oldRows); i++)
     {
-        for(size_type j = 0; j < oldColumns; j++)
+        for(size_type j = 0; j < (oldColumns > columns ? columns : oldColumns); j++)
         {
             this->at(i,j) = oldMat.at(i,j);
         }
@@ -482,6 +482,7 @@ bool Matrix<T,M>::operator!=(const Matrix<T,M>& rhs)
     return !(*this == rhs);
 }
 
+//FIXME: Consider non-square matrices
 template <typename T, int M>
 void Matrix<T,M>::transpose_inplace()
 {
@@ -689,28 +690,32 @@ Matrix<std::complex<T>,M> operator-(const Matrix<T,M>& lhs, const Matrix<std::co
 template <typename T, int M>
 Matrix<T,M>& Matrix<T,M>::operator+=(const Matrix<T,M>& rhs)
 {
-    (*this) = (*this) + rhs;
+    std::transform(this->begin(),this->end(),rhs.begin(),this->begin(),std::plus<T>());
+//    (*this) = (*this) + rhs;
     return *this;
 }
 
 template <typename T, int M>
 Matrix<T,M>& Matrix<T,M>::operator-=(const Matrix<T,M>& rhs)
 {
-    (*this) = (*this) - rhs;
+    std::transform(this->begin(),this->end(),rhs.begin(),this->begin(),std::minus<T>());
+//    (*this) = (*this) - rhs;
     return *this;
 }
 
 template <typename T, int M>
 Matrix<T,M>& Matrix<T,M>::operator*=(const Matrix<T,M>& rhs)
 {
-    (*this) = (*this) * rhs;
+    std::transform(this->begin(),this->end(),rhs.begin(),this->begin(),std::multiplies<T>());
+//    (*this) = (*this) * rhs;
     return *this;
 }
 
 template <typename T, int M>
 Matrix<T,M>& Matrix<T,M>::operator*=(const T& rhs)
 {
-    (*this) = (*this) * rhs;
+    std::transform(this->begin(),this->end(),this->begin(),std::bind2nd(std::multiplies<T>(),rhs));
+//    (*this) = (*this) * rhs;
     return *this;
 }