Definition of '1j'?

[stephenhicks]

Hi,

I'm wondering how/where the syntax for, e.g., 1j is defined. Is it
something I can define myself? In particular, I make very heavy use of
a complex unit other than j (I'll call it 1k=exp(pi*1j/3)), and it
would be terribly convenient to make my own complex class based on this
unit, which would construct and display results in this form, i.e.

>>(1+2k)*1k

-2+3k

It's not a terrible inconvenience if this is not possble, since I can
just define K=mycomplex(0,1), but I really do like the 1j notation, and
the problem with the other notation is that K could easily get
overwritten (and thus suggests I need a better name), while 1k would
take intention to mess up.

Thanks,
--
Steve Hicks

[Fredrik Lundh]

st**********@gmail.com wrote:

I'm wondering how/where the syntax for, e.g., 1j is defined.

http://docs.python.org/ref/imaginary.html

</F>

[Gabriel Genellina]

At Wednesday 4/10/2006 21:43, st**********@gmail.com wrote:

>I'm wondering how/where the syntax for, e.g., 1j is defined. Is it
something I can define myself? In particular, I make very heavy use of

Nope - it's hardcoded inside the parser (see tokenizer.c)

>a complex unit other than j (I'll call it 1k=exp(pi*1j/3)), and it
would be terribly convenient to make my own complex class based on this
unit, which would construct and display results in this form, i.e.

>(1+2k)*1k

-2+3k

It's not a terrible inconvenience if this is not possble, since I can
just define K=mycomplex(0,1), but I really do like the 1j notation, and
the problem with the other notation is that K could easily get
overwritten (and thus suggests I need a better name), while 1k would
take intention to mess up.

For a thing like 3k to be recognized as a complex number I'm afraid
the only option would be to modify the Python sources.

Gabriel Genellina
Softlab SRL

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