/// <summary>
/// Applies a function to every element of the array.
/// </summary>
public static TResult[][] Apply <TInput, TResult>(this TInput[][] matrix, Func <TInput, int, int, TResult> func)
{
return(Apply(matrix, func, Jagged.CreateAs <TInput, TResult>(matrix)));
}
/// <summary>
/// Creates a matrix of k-hot vectors, where all values at each row are
/// zero except for the ones in the positions where <paramref name="mask"/>
/// are true, which are set to one.
/// </summary>
///
/// <typeparam name="T">The data type for the matrix.</typeparam>
///
/// <param name="mask">The boolean mask determining where ones will be placed.</param>
///
/// <returns>A matrix containing one-hot vectors where only a single position
/// is one and the others are zero.</returns>
///
public static T[][] KHot <T>(bool[][] mask)
{
return(KHot <T>(mask, Jagged.CreateAs <bool, T>(mask)));
}