public SparseDualNumber(SparseDualNumber f, double g, double g1)
{
value = g;
if (g1 != 0.0 && f.variables != null)
{
variables = f.variables;
int n = variables.Length;
gradient = new double[n];
for (int i = 0; i < n; i++)
{
gradient[i] = g1 * f.gradient[i];
}
}
}
public SparseDualNumber(SparseDualNumber f1, SparseDualNumber f2, double g, double g1, double g2)
{
value = g;
/*gradient = new Dictionary<int, double>();
if (g1 != 0.0)
{
foreach (KeyValuePair<int, double> gr in f1.gradient)
{
gradient[gr.Key] += g1 * gr.Value;
}
}
if (g2 != 0.0)
{
foreach (KeyValuePair<int, double> gr in f1.gradient)
{
gradient[gr.Key] += g2 * gr.Value;
}
}*/
}
public static SparseDualNumber Exp(SparseDualNumber f)
{
double c = Math.Exp(f.value);
return new SparseDualNumber(f, c, c);
}
