Generalised Truth Tables

Generate 'truth tables' where columns correspond to digits in arbitrary mixtures of bases.

Normal truth tables enumerate all possible rows of binary digits. In a generalised truth table, the base associated with each digit is arbitrary. This allows exhaustive generation of combinations of variables of heterogeneous cardinality; e.g. we might consider every possible combination of hair and eye colour, using hair colours in {black, brown, blonde, grey, red} and eye colours in {brown, blue, green, grey}. Using TTABLE([5 4]); would generate a 20-by-2 matrix, where each row corresponds to a hair & eye combination.

Generalised truth tables can also be seen as computing counting digits where each place has an arbitrary base;
TTABLE([10 10 10]) - 1 would generate rows from [0 0 0] to [9 9 9], but we could also use TTABLE([10 5 10]) - 1 to indicate that the second digit is counted in base 5 instead of base 10.

Normal K-bit truth tables can be produced with TTABLE(ones(1, k) * 2) - 1.

Additional documentation is included.