void SubtractFromFlow(const int &ii, const int &jj, const int &kk,
const squareMatrix &jac) {
MSG_ASSERT(jac.Size() == this->FlowSize(), "block size must match");
std::transform(this->BeginFlow(ii, jj, kk), this->BeginTurb(ii, jj, kk),
jac.begin(), this->BeginFlow(ii, jj, kk),
std::minus<double>());
}
//operator overload for division with a scalar
squareMatrix operator/ (const double &scalar, const squareMatrix &s2){
squareMatrix s1(s2.Size());
int cc = 0;
int rr = 0;
for( cc = 0; cc < s2.Size(); cc++ ){
for( rr = 0; rr < s2.Size(); rr++ ){
s1.SetData(rr,cc, scalar / s2.Data(rr,cc));
}
}
return s1;
}
//operator overload for subtraction
squareMatrix squareMatrix::operator - (const squareMatrix& s2)const{
squareMatrix s1 = *this;
//check to see that matrix dimensions are the same
if ( s1.size != s2.size ){
cerr << "ERROR: Cannot subtract matrices, dimensions do not agree." << endl;
}
int cc = 0;
int rr = 0;
for( cc = 0; cc < s2.Size(); cc++ ){
for( rr = 0; rr < s2.Size(); rr++ ){
s1.SetData(rr,cc, s1.Data(rr,cc) - s2.Data(rr,cc));
}
}
return s1;
}
//operator overload for multiplication
squareMatrix squareMatrix::operator * (const squareMatrix& s2)const{
squareMatrix s1 = *this;
//check to see that matrix dimensions are the same
if ( s1.size != s2.size ){
cerr << "ERROR: Cannot multiply matrices, dimensions do not agree." << endl;
}
int cc = 0;
int rr = 0;
for( cc = 0; cc < s2.Size(); cc++ ){
for( rr = 0; rr < s2.Size(); rr++ ){
double newVal = 0.0;
int ii = 0;
for( ii = 0; ii < s2.Size(); ii++ ){
newVal += ((*this).Data(rr,ii) * s2.Data(ii,cc));
}
s1.SetData(rr,cc, newVal);
}
}
return s1;
}
//copy constructor
squareMatrix::squareMatrix( const squareMatrix &cp){
(*this).size = cp.Size();
(*this).data = new double[cp.Size()*cp.Size()];
copy(&cp.data[0], &cp.data[0] + cp.Size()*cp.Size(), &(*this).data[0]);
}
