On Jun 15, 2009, at 3:08 PM, Tom Boothby wrote:
>
> The error isn't in your code, I've duplicated this with much
> simpler code.
>
> {{{
> %cython
> from sage.rings.all import CC
> def foo(z):
> return CC(z)
> }}}
>
> {{{
> complex_plot(foo,(0,1),(0,1))
> ///
> Traceback (click to the left for traceback)
> ...
> TypeError: a float is required
> }}}
>
> {{{
> complex_plot(lambda z: foo(z),(0,1),(0,1))
> ///
> [pretty picture]
> }}}
It looks like error is in adapt_to_callable, which probably doesn't
recognize "builtin" (i.e. c defined) functions (being a different
type than Python-defined ones). It should be converted to used
fast_callable rather than fast_float anyways.
- Robert
>
>
>
> On Mon, Jun 15, 2009 at 12:09 PM, Jason
> Grout<jason-s...@creativetrax.com> wrote:
>>
>> I just tried to implement a quick, fast mandelbrot set plot. I
>> posted
>> my results (with the puzzling error) here: http://sagenb.org/home/
>> pub/578/
>>
>> The error that I get is that when passing a Cython-created CC
>> number to
>> complex_plot, I get an error "float required"---something about the
>> fast_float stuff. However, when I wrap that in a Python function
>> which
>> merely returns the exact same thing, there is no error.
>>
>> Can someone look at the worksheet and see offhand what the problem
>> is?
>> Is it an error in my code, in fast_float, complex_plot, or
>> something else?
>>
>> Thanks,
>>
>> Jason
>>
>>
>>>
>>
>
> >
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