/// <summary>
/// Formats a <see cref="RealMatrix"/> object to produce a string.
/// </summary>
/// <param name="matrix">the object to format.</param>
/// <param name="toAppendTo">where the text is to be appended</param>
/// <returns>the value passed in as toAppendTo.</returns>
public StringBuilder format(RealMatrix matrix, StringBuilder toAppendTo)
{
// format prefix
toAppendTo.Append(prefix);
// format rows
int rows = matrix.getRowDimension();
for (int i = 0; i < rows; ++i)
{
toAppendTo.Append(rowPrefix);
for (int j = 0; j < matrix.getColumnDimension(); ++j)
{
if (j > 0)
{
toAppendTo.Append(columnSeparator);
}
CompositeFormat.formatDouble(matrix.getEntry(i, j), CultureInfo.CurrentCulture, toAppendTo);
}
toAppendTo.Append(rowSuffix);
if (i < rows - 1)
{
toAppendTo.Append(rowSeparator);
}
}
// format suffix
toAppendTo.Append(suffix);
return(toAppendTo);
}
/// <summary>
/// Formats a <see cref="Complex"/> object to produce a string.
/// </summary>
/// <param name="complex">the object to format.</param>
/// <param name="toAppendTo">where the text is to be appended</param>
/// <returns>the value passed in as toAppendTo.</returns>
public StringBuilder format(Complex complex, StringBuilder toAppendTo)
{
CultureInfo Real = CultureInfo.CurrentCulture;
Real.NumberFormat = getRealFormat();
// format real
double re = complex.getReal();
CompositeFormat.formatDouble(re, Real, toAppendTo);
// format sign and imaginary
double im = complex.getImaginary();
StringBuilder imAppendTo;
if (im < 0.0)
{
toAppendTo.Append(" - ");
imAppendTo = formatImaginary(-im, new StringBuilder());
toAppendTo.Append(imAppendTo);
toAppendTo.Append(getImaginaryCharacter());
}
else if (im > 0.0 || Double.IsNaN(im))
{
toAppendTo.Append(" + ");
imAppendTo = formatImaginary(im, new StringBuilder());
toAppendTo.Append(imAppendTo);
toAppendTo.Append(getImaginaryCharacter());
}
return(toAppendTo);
}
/// <summary>
/// Format the absolute value of the imaginary part.
/// </summary>
/// <param name="absIm">Absolute value of the imaginary part of a complex number.</param>
/// <param name="toAppendTo">where the text is to be appended.</param>
/// <returns>the value passed in as toAppendTo.</returns>
private StringBuilder formatImaginary(double absIm, StringBuilder toAppendTo)
{
CultureInfo Imag = CultureInfo.CurrentCulture;
Imag.NumberFormat = getRealFormat();
CompositeFormat.formatDouble(absIm, Imag, toAppendTo);
if (toAppendTo.ToString().Equals("1"))
{
// Remove the character "1" if it is the only one.
toAppendTo.Length = 0;
}
return(toAppendTo);
}
/// <summary>
/// Formats a <see cref="RealVector"/> object to produce a string.
/// </summary>
/// <param name="vector">the object to format.</param>
/// <param name="toAppendTo">where the text is to be appended</param>
/// <returns>the value passed in as toAppendTo.</returns>
public StringBuilder format(RealVector vector, StringBuilder toAppendTo)
{
// format prefix
toAppendTo.Append(prefix);
// format components
for (int i = 0; i < vector.getDimension(); ++i)
{
if (i > 0)
{
toAppendTo.Append(separator);
}
CompositeFormat.formatDouble(vector.getEntry(i), CultureInfo.CurrentCulture, toAppendTo);
}
// format suffix
toAppendTo.Append(suffix);
return(toAppendTo);
}
