protected void Button1_Click(object sender, EventArgs e)
{
if (TextBox1.Text != "")
{
var tokens = TextBox1.Text.Split(',');
double[] seq;
try
{
seq = Array.ConvertAll(tokens, double.Parse);
}
catch
{
Label1.Text = "Could not convert the sequence into an array.";
return;
}
int degree;
if (FiniteCalculus.HasPattern(seq, out degree))
{
var coeff = FiniteCalculus.GetCoefficientsForNthSum(seq, degree);
var output = FiniteCalculus.GetExpressionForNthSum(coeff);
Label1.Text = output;
}
else
{
Label1.Text = "Not enough terms to spot a pattern or not a polynomial sequence.";
}
}
else
{
Label1.Text = "No sequence was entered.";
}
}
