Added custom datatypes following the Python representation: "4+5j". It would be preferable if we could find existing adopted datatypes.
The choice of "j" to denote imaginary numbers can be discussed. Chosen here to be aligned with Python. However, if we want to generalise to quatarnions, probably "i" would be a better choice, allowing them to be represented with ("i", "j", "k"), avoiding "l" which is difficult to distinguish from 1.
Closes #270
Added custom datatypes following the Python representation: "4+5j". It would be preferable if we could find existing adopted datatypes.
The choice of "j" to denote imaginary numbers can be discussed. Chosen here to be aligned with Python. However, if we want to generalise to quatarnions, probably "i" would be a better choice, allowing them to be represented with ("i", "j", "k"), avoiding "l" which is difficult to distinguish from 1.
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