Mnemonic tools
To install: pip install hm
The major system is a mnemonic technique used to aid in memorizing numbers.
It works as follows:
>>> from hm import MajorSystem
>>> m = MajorSystem()
The "Mnemonic Major System" (https://en.wikipedia.org/wiki/Mnemonic_major_system) assigns a set of similar phonemes to each digit:
>>> assert m.phones_for_num == {
... 0: {'S', 'Z'},
... 1: {'D', 'DH', 'T', 'TH'},
... 2: {'N'},
... 3: {'M'},
... 4: {'R'},
... 5: {'L'},
... 6: {'CH', 'JH', 'SH'},
... 7: {'G', 'K'},
... 8: {'F', 'V'},
... 9: {'B', 'P'}
... }
As a consequence these phonemes are mapped to numbers:
>>> assert m.num_of_phone == {
... 'B': 9,
... 'CH': 6,
... 'D': 1,
... 'DH': 1,
... 'F': 8,
... 'G': 7,
... 'JH': 6,
... 'K': 7,
... 'L': 5,
... 'M': 3,
... 'N': 2,
... 'P': 9,
... 'R': 4,
... 'S': 0,
... 'SH': 6,
... 'T': 1,
... 'TH': 1,
... 'V': 8,
... 'Z': 0
... }
Any sentence has a corresponding phoneme sequence:
>>> m.term_to_phones('wild cat')
['W', 'AY1', 'L', 'D', 'K', 'AE1', 'T']
The system doesn't contain all phonemes; only some of the consonant phonemes. So if we only keep those phonemes that the system covers, we get:
>>> m.term_to_mst_sequence('wild cat')
['L', 'D', 'K', 'T']
Which corresponds to a number.
>>> m.term_to_nums('wild cat')
[5, 1, 7, 1]
But really, the system is used to be able to create words (therefore images) that correspond to a sequence of numbers, so that one can remember them:
>>> m.terms_of_numstr['3214'] # doctest: +NORMALIZE_WHITESPACE
['hammontree', 'mahindra', 'manteer', 'mantra', 'mentor', 'minteer', 'mondry',
'monetary', 'monteiro', 'monterey', 'montero', 'monterrey', 'montrouis',
'montroy', 'montuori', 'omohundro']
