Function normVDouble

SRC/element/PFEMElement/BackgroundDef.cpp:111–117

}

double normVDouble(const VDouble& v) {
    double res = 0.0;
    for (unsigned int i = 0; i < v.size(); i++) {
        res += v[i] * v[i];
    }
    return sqrt(res);
}

double distanceVDouble(const VDouble& v1, const VDouble& v2) {
    double res = 0.0;