providing a definition for a symbolic function

[Daniel Mahler]

I believe i recently saw in the sympy documentation a function to set the definition of a symbolic function.

Something like 

   var('n')

   F = Function('F')

   the_function_I cant_remember(F, lambda x: x + 1)

   z = F(3*n) # ==> 3*n+1

I thought the function was called something like `bind_function`, but I have googled the net and grepped the sympy sources for any reasonable variation i can think of without success.

Does it exist, or did I just dream it?

thanks

Daniel

[Jason Moore]

Is it here: http://docs.sympy.org/latest/modules/functions/index.html

Jason
moorepants.info
+01 530-601-9791

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[Aaron Meurer]

You might have been thinking of implemented_function, although that
function is designed for numeric functions.

Aaron Meurer

On Sat, Mar 25, 2017 at 5:51 PM, Jason Moore <moore...@gmail.com> wrote:
> Is it here: http://docs.sympy.org/latest/modules/functions/index.html
>
>
> Jason
> moorepants.info
> +01 530-601-9791
>
> On Sat, Mar 18, 2017 at 11:48 PM, Daniel Mahler <dma...@gmail.com> wrote:
>>
>> I believe i recently saw in the sympy documentation a function to set the
>> definition of a symbolic function.
>> Something like
>>
>> var('n')
>> F = Function('F')
>> the_function_I cant_remember(F, lambda x: x + 1)
>> z = F(3*n) # ==> 3*n+1
>>
>> I thought the function was called something like `bind_function`, but I
>> have googled the net and grepped the sympy sources for any reasonable
>> variation i can think of without success.
>> Does it exist, or did I just dream it?
>>
>> thanks
>> Daniel
>>
>> --
>> You received this message because you are subscribed to the Google Groups
>> "sympy" group.
>> To unsubscribe from this group and stop receiving emails from it, send an

>> email to sympy+un...@googlegroups.com.

>> To post to this group, send email to sy...@googlegroups.com.
>> Visit this group at https://groups.google.com/group/sympy.
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>> https://groups.google.com/d/msgid/sympy/293607fc-2b7d-477c-8e3c-9a208b3b534e%40googlegroups.com.
>> For more options, visit https://groups.google.com/d/optout.
>
>

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